396 eggs at true relative size, from the 15.6 mm egg of the Chestnut-bellied Seedeater to the 30 mm egg of the Grass-green Tanager.
About this collection. 4,422 eggs, covering nearly every bird that nests in the Americas, from Canada and the United States through Mexico, Central America and the Caribbean to South America, plus a few famous eggs from elsewhere, like the Ostrich and the extinct Elephant Bird. Sizes come from published measurements wherever we found them; shapes and colours are our best estimates (how accurate these eggs are).
2,118 of them are marked Speculative: we haven't found documented descriptions or measurements of these eggs yet (for 129 of them, a source we checked reports the egg as undescribed), so they are estimated from their closest relatives. They are hidden unless you untick Hide speculative eggs. We keep adding sources and update the eggs as we go. Have you seen one of these eggs, or know a source? Message us.
Ash-breasted Sierra Finch
Geospizopsis plebejus
- 18.6 × 14.2 mm
- Clutch: 2–4 eggs
Bluish green, finely speckled all over with grey-brown and ochre, a little more at the large end.
Sources of information
- Size
- Average of 21 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 62.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 62. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Azure-rumped Tanager
Poecilostreptus cabanisi
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Azure-shouldered Tanager
Thraupis cyanoptera
- 23.5 × 16.6 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
Pale blue, sparsely marked all over with small, well-defined, roundish purplish-black spots.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Thraupis abbas, Thraupis episcopus, Thraupis glaucocolpa, Thraupis ornata, Thraupis palmarum ….
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Bananaquit
Coereba flaveola
- 17.92 × 13.15 mm
- Clutch: 2–3 eggs
show all 24
Mexico: MexicoCentral America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Aruba, Bonaire, Sint Eustatius and Saba, Curaçao, Trinidad and Tobago, Caribbean islands
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
Dull greyish or yellowish white (pale olive-buff), glossless, spotted with yellowish-brown, rust and purplish brown over purplish under-marks, heaviest at the larger end, often as a zone or cap.
Sources of information
- Size
- Average of 12 eggs: Gross, A. O. 1958. Life history of the Bananaquit of Tobago Island. The Wilson Bulletin 70(3): 257-279., p. 268 (Table 3); p. 270.
Agrees with: Carvalho, C. T. de 1958. Notas ecológicas sôbre Coereba flaveola (Passeres, Coerebidae). Boletim do Museu Paraense Emílio Goeldi, Nova Série, Zoologia 10: 1-21. [Belém: 1 egg 19.1 x 13.15 mm; 2 eggs 16.5 x 12.0 and 16.8 x 12.1 mm]; Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum (Natural History), Vol. 5. London: British Museum. [as 'Coereba luteola', Cabanis's Sugar-bird, Venezuela: .63-.65 x .5-.51 in = 16.0-16.5 x 12.7-13.0 mm], p. 294 (approx.). - Description
- Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zool. Meded. 24; supporting: Gross, A. O. 1958. Life history of the Bananaquit of Tobago. Wilson Bull. 70; supporting: Skutch, A. F. 1954. Life Histories of Central American Birds. Pacific Coast Avifauna 31.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Band-tailed Seedeater
Catamenia analis
- 19 × 12 mm (approx.)
- Clutch: 2–3 eggs
Pale blue with chestnut and grey spots all over, more at the broad end.
Sources of information
- Size
- Guerra 1967, Hornero 10: 389-402.
- Description
- Guerra, E.R. 1967. Nuevos aportes al conocimiento de Catamenia analis. Hornero 10(4): 389-402.
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 85. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Band-tailed Sierra Finch
Rhopospina alaudina
- 21.4 × 15.9 mm
Pinkish grey, with a few chocolate-brown specks, spots, small blotches and short lines over lavender-grey smudges, mostly on the broader half; moderately glossy.
Sources of information
- Size
- Average of 21 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 254.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Barbados Bullfinch
Loxigilla barbadensis
- 20.5 × 15.1 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Lesser Antillean Bullfinch egg (same genus).
Sources of information
- Size
- Average of 12 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 268.
- Description
- Estimated, no description found: drawn like a related egg (Lesser Antillean Bullfinch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Bay-chested Warbling Finch
Castanozoster thoracicus
- 17.7 × 13.2 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Band-tailed Seedeater egg (same family).
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 255.
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Bay-headed Tanager
Tangara gyrola
- 20.2 × 13.8 mm
- Clutch: 2 eggs
show all 13
Central America: Costa Rica, Nicaragua, PanamaThe Caribbean: Trinidad and Tobago
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
White or dull white with a wreath of brown or chocolate spots around the large end and fine dots elsewhere.
Sources of information
- Size
- Average of 4 eggs: Skutch 1954, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 428.
- Description
- Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panama, part 4; supporting: Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31), p. 238.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Beryl-spangled Tanager
Tangara nigroviridis
- 20.6 × 14.5 mm (approx.)
Creamy white, mottled and blotched with brown and lilac grey in a zone round the broad end (like Scrub Tanager eggs).
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Bicolored Conebill
Conirostrum bicolor
- 17.8 × 12.7 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
- Clutch: 2 eggs
show all 9
The Caribbean: Trinidad and TobagoSouth America: Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Pale, blotched with brown.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conirostrum cinereum, Conirostrum ferrugineiventre, Conirostrum sitticolor, Conirostrum speciosum.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 304.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black Flowerpiercer
Diglossa humeralis
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-and-chestnut Warbling Finch
Poospiza whitii
- 19 × 14 mm (approx.)
- Clutch: 3 eggs
Pale greenish grey, with black, chestnut and grey spots and small blotches.
Sources of information
- Size
- de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 198.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 198. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-and-gold Tanager
Bangsia melanochlamys
- 26.5 × 18.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Moss-backed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Bangsia edwardsi.
- Description
- Estimated, no description found: drawn like a related egg (Moss-backed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-and-rufous Warbling Finch
Poospiza nigrorufa
- 19.7 × 15 mm
- Clutch: 3–4 eggs
Pale grey-green, with black, brown and grey spots, small blotches and a few lines.
Sources of information
- Size
- Average of 5 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 203.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 203. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-and-tawny Seedeater
Sporophila nigrorufa
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-and-white Seedeater
Sporophila luctuosa
- 17.5 × 13 mm
Greyish white, evenly covered all over with smudged dull brownish spots.
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 264.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-and-white Tanager
Conothraupis speculigera
- 21 × 15.6 mm (approx.)
- Clutch: 2–3 eggs
Pale blue with heavy, evenly distributed brown blotching.
Sources of information
- Size
- Greeney et al. 2006, Bol. SAO 16(1): 24-29.
- Description
- Greeney et al. 2006, Nest descriptions for Conothraupis speculigera and Thlypopsis ornata in Ecuador, Bol. SAO 16(1): 24-29 (via Wikipedia).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-and-yellow Tanager
Chrysothlypis chrysomelas
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-backed Bush Tanager
Urothraupis stolzmanni
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-backed Tanager
Stilpnia peruviana
- 21.1 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scrub Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Stilpnia cayana, Stilpnia cucullata, Stilpnia cyanoptera, Stilpnia heinei, Stilpnia larvata ….
- Description
- Estimated, no description found: drawn like a related egg (Scrub Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-bellied Seedeater
Sporophila melanogaster
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-billed Seed Finch
Sporophila atrirostris
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-capped Hemispingus
Kleinothraupis atropileus
- 21.1 × 15.9 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 308.
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-capped Tanager
Stilpnia heinei
- 18.5 × 15.2 mm (approx.)
Pale greenish white tinged lilac, glossless, thickly speckled and mottled with brown and lilac grey, densest at the larger end; broad pointed oval.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-capped Warbling Finch
Microspingus melanoleucus
- 18.8 × 13.7 mm (approx.)
White, pale greenish or pale blue, sparingly spotted with black and lilac grey, chiefly round the larger end.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 227. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Black-chested Mountain Tanager
Cnemathraupis eximia
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-chinned Mountain Tanager
Anisognathus notabilis
- 21.9 × 16.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scarlet-bellied Mountain Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Anisognathus igniventris, Anisognathus somptuosus.
- Description
- Estimated, no description found: drawn like a related egg (Scarlet-bellied Mountain Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-cowled Saltator
Saltator nigriceps
- 26.5 × 19 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Lesser Antillean Saltator egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Saltator albicollis, Saltator atriceps, Saltator atripennis, Saltator aurantiirostris, Saltator coerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Lesser Antillean Saltator).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-crested Finch
Lophospingus pusillus
- 18.5 × 13.7 mm
- Clutch: 3 eggs
Bluish white, with small brown blotches concentrated at the large end.
Sources of information
- Size
- Average of 2 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 243.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-crowned Palm-tanager
Phaenicophilus palmarum
- 25.7 × 17.85 mm (approx.)
- Clutch: 2–3 eggs
Whitish to pale greenish, with grey and brown blotches mainly at the blunt end; lustreless, oval to long oval.
Sources of information
- Size
- Bond J 1943, Nidification of the passerine birds of Hispaniola. Wilson Bull. 55(2): 115-125.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 246.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-eared Hemispingus
Sphenopsis melanotis
- 19.5 × 16 mm
- Clutch: 2 eggs
Very pale blue, with light brown and dark cinnamon spots and flecks concentrated near the larger end.
Sources of information
- Size
- Greeney 2022, Bull. B.O.C. 142(4): 404–409, p. 408.
- Description
- Greeney 2022, Bull. B.O.C. 142(4): 404–409, p. 408.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-faced Dacnis
Dacnis lineata
- 17 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaNo documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Estimated, no description found: drawn like a related egg (Blue Dacnis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-faced Grassquit
Melanospiza bicolor
- 16.7 × 12.8 mm
- Clutch: 2–3 eggs
White to creamy white, spotted with reddish brown and chocolate, heaviest at the larger end.
Sources of information
- Size
- Average of 41 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 267.
- Description
- Hauber, M.E. (ed.) 2014. The Book of Eggs. University of Chicago Press, p. 574.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Black-faced Tanager
Schistochlamys melanopis
- 23.3 × 16.4 mm
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaYellowish-white, covered with very numerous dark brown freckles.
Sources of information
- Size
- Average of 8 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 307.
- Description
- Ihering 1900 (Revista do Museu Paulista 4).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-goggled Tanager
Trichothraupis melanops
- 24.6 × 17.5 mm
Pinkish white, somewhat glossy, spotted with Indian red and lavender at the broad end, with purplish-black scrolls and fine dark lines.
Sources of information
- Size
- Average of 14 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 310.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-headed Hemispingus
Pseudospingus verticalis
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-headed Saltator
Saltator atriceps
- 27.7 × 18.7 mm
- Clutch: 2 eggs
Bluish green, wreathed with black at the larger end.
Sources of information
- Size
- Average of 8 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Wetmore, A., Pasquier, R.F. & Olson, S.L. 1984. The Birds of the Republic of Panamá, Part 4. Smithsonian Misc. Coll. 150(4).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Black-headed Tanager
Stilpnia cyanoptera
- 22.75 × 15.5 mm (approx.)
Pale greenish white, sparingly spotted, some larger spots dark purplish brown.
Sources of information
- Size
- Penard, F. P. & A. P. Penard 1910. De vogels van Guyana (Suriname, Cayenne en Demerara), deel 2. Paramaribo., p. 440.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-hooded Sierra Finch
Phrygilus atriceps
- 23.6 × 17.1 mm
- Clutch: 3–4 eggs
Bluish green, densely speckled all over with brown and grey.
Sources of information
- Size
- Average of 24 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 47.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 47. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-hooded Tanager
Stilpnia whitelyi
- 21.1 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scrub Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Stilpnia cayana, Stilpnia cucullata, Stilpnia cyanoptera, Stilpnia heinei, Stilpnia larvata ….
- Description
- Estimated, no description found: drawn like a related egg (Scrub Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-legged Dacnis
Dacnis nigripes
- 17 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Estimated, no description found: drawn like a related egg (Blue Dacnis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-masked Finch
Coryphaspiza melanotis
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a description of this egg (a source we checked reports it as undescribed), so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Wikipedia, Black-masked finch (citing Jaramillo & Sharpe 2020, Birds of the World): 'nothing else is known about its breeding biology' (says the egg has not been described).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-throated Flowerpiercer
Diglossa brunneiventris
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-throated Grosbeak
Saltator fuliginosus
- 26.5 × 19 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Lesser Antillean Saltator egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Saltator albicollis, Saltator atriceps, Saltator atripennis, Saltator aurantiirostris, Saltator coerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Lesser Antillean Saltator).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Black-throated Saltator
Saltatricula atricollis
- 26.5 × 20 mm (approx.)
White, with a few large irregular dark-brown spots at the blunt end.
Sources of information
- Size
- Nehrkorn, A. 1899. Katalog der Eiersammlung nebst Beschreibungen der aussereuropäischen Eier. Braunschweig.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Black-throated Shrike-Tanager
Lanio aurantius
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the White-throated Shrike-Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (White-throated Shrike-Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
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Black-winged Saltator
Saltator atripennis
- 27 × 20 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Golden-billed Saltator egg (same genus).
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Estimated, no description found: drawn like a related egg (Golden-billed Saltator).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Blue Dacnis
Dacnis cayana
- 17 × 13 mm (approx.)
- Clutch: 2 eggs
show all 16
Central America: Costa Rica, Honduras, Nicaragua, PanamaThe Caribbean: Trinidad and Tobago
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela
White or whitish with dark markings.
Sources of information
- Size
- Ihering, H. von 1900. Catalogo critico-comparativo dos ninhos e ovos das aves do Brazil. Revista do Museu Paulista 4: 191-300., p. 224.
- Description
- Skutch 1962, Life histories of honeycreepers, Condor 64: 92-116; secondary: Wikipedia (pt), Dacnis cayana.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Blue Finch
Rhopospina caerulescens
- 21.7 × 16.1 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Rhopospina alaudina, Rhopospina carbonaria, Rhopospina fruticeti.
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Blue-and-black Tanager
Tangara vassorii
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Blue-and-gold Tanager
Bangsia arcaei
- 26.5 × 18.2 mm (estimated)
- Speculative: we haven't found a description of this egg (a source we checked reports it as undescribed), so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Moss-backed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Bangsia edwardsi.
- Description
- Robbins & Glenn 1988, First description of the nest and eggs of the Moss-backed Tanager, Condor 90: 947-948 (eggs unknown for all other members of the complex; two arcaei nests seen but not examined) (says the egg has not been described).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Blue-and-yellow Tanager
Rauenia bonariensis
- 26 × 17.5 mm
- Clutch: 3 eggs
Pale greenish white, with dark brown and grey spots, small blotches and short streaks, more at the large end.
Sources of information
- Size
- Average of 8 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 285.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 285. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Blue-backed Conebill
Conirostrum sitticolor
- 19.8 × 13.2 mm (approx.)
Pale greenish white, blotched and spotted with lilac-grey and a few small purplish-black spots, chiefly at the larger end; no gloss.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 351.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Blue-backed Tanager
Cyanicterus cyanicterus
- 24.7 × 17.9 mm
Light blue, sparsely spotted with sepia-lilac and blackish brown, mainly at the blunt end, with tiny specks of the same colours and lilac-grey underlying spots all over.
Sources of information
- Size
- Average of 3 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 314.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 255.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Blue-black Grassquit
Volatinia jacarina
- 16.71 × 12.43 mm
- Clutch: 2 eggs
show all 23
Mexico: MexicoCentral America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago, Caribbean islands
South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
White or bluish white, moderately glossy, with small spots and some larger blotches of reddish and purplish brown, chiefly at the large end as a zone or cap.
Sources of information
- Size
- Average of 11 eggs: Carvalho, C. B. V., Macedo, R. H. F. & Graves, J. A. 2007. Reproduction of Blue-black Grassquits in central Brazil. Brazilian Journal of Biology 67(2): 275-281., p. 277.
Agrees with: Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum (Natural History), Vol. 5. London: British Museum. [Volatinia jacarini; 8 eggs, Mexico, Costa Rica (Irazú), Medellín: range .6-.7 x .5-.54 in = 15.2-17.8 x 12.7-13.7 mm], p. 166. - Description
- Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zool. Meded. 24; supporting: Wetmore, A. et al. 1984. The Birds of the Republic of Panamá, part 4; supporting: Carvalho, C. B. V., Macedo, R. H. & Graves, J. A. 2007. Condor 109.
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 94. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Blue-browed Tanager
Tangara cyanotis
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Blue-capped Tanager
Sporathraupis cyanocephala
- 25.2 × 17.1 mm
Cream, boldly spotted and blotched with lilac brown, purplish brown and lavender grey, denser at the larger end, sometimes a cap; slight gloss.
Sources of information
- Size
- Average of 13 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 313.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Blue-grey Tanager
Thraupis episcopus
- 22.9 × 16 mm
- Clutch: 1–2 eggs
show all 18
Mexico: MexicoCentral America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Greyish white, very thickly marked with brown, densest towards the larger end.
Sources of information
- Size
- Average of 16 eggs: Skutch, A. F. 1945. Incubation and nestling periods of Central American birds. Auk 62: 8-37., p. 26.
Agrees with: Hallinan, T. 1924. Notes on some Panama Canal Zone birds with special reference to their food. Auk 41: 304-326.. - Description
- Hallinan, T. 1924. Notes on some Panama Canal Zone birds with special reference to their food. Auk 41: 304-326.
Agrees with: Wetmore, A., R. F. Pasquier & S. L. Olson. 1984. The birds of the Republic of Panamá. Part 4. Smithsonian Miscellaneous Collections 150(4)., p. 437 (inferred from scan position). - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Blue-necked Tanager
Stilpnia cyanicollis
- 21.1 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scrub Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Stilpnia cayana, Stilpnia cucullata, Stilpnia cyanoptera, Stilpnia heinei, Stilpnia larvata ….
- Description
- Estimated, no description found: drawn like a related egg (Scrub Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Blue-whiskered Tanager
Tangara johannae
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Blue-winged Mountain Tanager
Anisognathus somptuosus
- 23 × 16.5 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Scarlet-bellied Mountain Tanager egg (same genus).
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 314.
- Description
- Estimated, no description found: drawn like a related egg (Scarlet-bellied Mountain Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Bluish Flowerpiercer
Diglossa caerulescens
- 18.5 × 14.4 mm (approx.)
Greenish white, thickly mottled and streaked with pale reddish brown and lavender; glossless.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Bluish-grey Saltator
Saltator coerulescens
- 26.18 × 19.04 mm
- Clutch: 2 eggs
show all 9
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, Paraguay, Peru, Uruguay, VenezuelaPale blue, with a ring of blackish-brown hair streaks and dots around the blunt end.
Sources of information
- Size
- Average of 50 eggs: Hellebrekers 1942 (Zool. Meded. 24), ["pp. 270\u2013271"].
- Description
- Wikipedia: Bluish-grey saltator; supporting: Hispanopedia: Saltator coerulescens.
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 163. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Bolivian Warbling Finch
Poospiza boliviana
- 19 × 14.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-and-chestnut Warbling Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Poospiza baeri, Poospiza hispaniolensis, Poospiza nigrorufa, Poospiza ornata, Poospiza whitii.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-chestnut Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Boulder Finch
Idiopsar brachyurus
- 26.4 × 17.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Glacier Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Idiopsar speculifer.
- Description
- Estimated, no description found: drawn like a related egg (Glacier Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Brassy-breasted Tanager
Tangara desmaresti
- 19.5 × 13.9 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Paradise Tanager egg (same genus).
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 317.
- Description
- Estimated, no description found: drawn like a related egg (Paradise Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Brazilian Tanager
Ramphocelus bresilia
- 23.6 × 17.4 mm
Pale blue, sparingly marked with deep black spots and small blackish-grey and grey underlying marks; slightly glossy.
Sources of information
- Size
- Average of 13 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 313.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Bright-rumped Yellow Finch
Sicalis uropygialis
- 20.8 × 14.9 mm
Pale bluish white, speckled with brown and grey, more near the larger end; slightly glossy.
Sources of information
- Size
- Average of 6 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 257.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 16. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Brown Tanager
Orchesticus abeillei
- 20.8 × 16 mm (approx.)
White faintly tinged pink, with large pale chestnut and smaller deep reddish-brown blotches and a few lavender specks, at the broad end; non-glossy.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Brown-flanked Tanager
Thlypopsis pectoralis
- 19.5 × 14.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut-headed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Thlypopsis pyrrhocoma, Thlypopsis ruficeps, Thlypopsis sordida.
- Description
- Estimated, no description found: drawn like a related egg (Chestnut-headed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Buff-banded Mountain Tanager
Dubusia taeniata
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Buff-bellied Tanager
Thlypopsis inornata
- 19.5 × 14.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut-headed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Thlypopsis pyrrhocoma, Thlypopsis ruficeps, Thlypopsis sordida.
- Description
- Estimated, no description found: drawn like a related egg (Chestnut-headed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Buff-bridled Inca Finch
Incaspiza laeta
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Buff-throated Saltator
Saltator maximus
- 27.5 × 19.2 mm
- Clutch: 2 eggs
show all 17
Mexico: MexicoCentral America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Bright light blue with a wreath of black dots, blotches and scrawls around the larger end.
Sources of information
- Size
- Average of 47 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 69.
Agrees with: Skutch 1954, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 535; Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 270. - Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Buff-throated Warbling Finch
Microspingus lateralis
- 20.7 × 15.1 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Grey-throated Warbling Finch egg (same genus).
Sources of information
- Size
- Average of 27 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 256.
- Description
- Estimated, no description found: drawn like a related egg (Grey-throated Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Buffy-fronted Seedeater
Sporophila frontalis
- 17.8 × 13 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Black-and-white Seedeater egg (same genus).
Sources of information
- Size
- Average of 12 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 258.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-white Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Burnished-buff Tanager
Stilpnia cayana
- 20.4 × 14.6 mm
show all 10
South America: Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, VenezuelaPale blue, spotted dark purplish red and blotched lilac-grey, chiefly at the larger end; somewhat glossy.
Sources of information
- Size
- Average of 10 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 318.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Capped Conebill
Conirostrum albifrons
- 17.8 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Bicolored Conebill egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conirostrum cinereum, Conirostrum ferrugineiventre, Conirostrum sitticolor, Conirostrum speciosum.
- Description
- Estimated, no description found: drawn like a related egg (Bicolored Conebill).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Carbonated Sierra Finch
Rhopospina carbonaria
- 21.7 × 16.1 mm
- Clutch: 3 eggs
Pale blue, densely speckled all over with brown.
Sources of information
- Size
- Average of 3 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 75.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 75. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Carriker's Mountain Tanager
Dubusia carrikeri
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Cherry-throated Tanager
Nemosia rourei
- 19 × 14 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Hooded Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Nemosia pileata.
- Description
- Estimated, no description found: drawn like a related egg (Hooded Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Chestnut Seedeater
Sporophila cinnamomea
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
- Clutch: 2 eggs
White, with small dark brown, chestnut, grey and violet spots concentrated at the larger end.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Chestnut-backed Tanager
Stilpnia preciosa
- 22.7 × 15.7 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Lesser Antillean Tanager egg (same genus).
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 318.
- Description
- Estimated, no description found: drawn like a related egg (Lesser Antillean Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Chestnut-bellied Flowerpiercer
Diglossa gloriosissima
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Chestnut-bellied Mountain Tanager
Dubusia castaneoventris
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Chestnut-bellied Seed Finch
Sporophila angolensis
- 18.7 × 13.6 mm
show all 12
The Caribbean: Caribbean islandsSouth America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela
Pale cream-white, densely spotted reddish-brown with a few dark brown marks, chiefly toward the larger end; glossy.
Sources of information
- Size
- Average of 88 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 266.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Chestnut-bellied Seedeater
Sporophila castaneiventris
- 15.6 × 12.48 mm
- Clutch: 2–3 eggs
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaWhite, greyish or bluish white, with small and large light to dark brown and reddish-brown spots, black spots and hair lines and purplish undermarks, often in a zone or cap.
Sources of information
- Size
- Average of 50 eggs: Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., pp. 268–269.
- Description
- Hellebrekers, W.Ph.J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Chestnut-breasted Mountain Finch
Poospizopsis caesar
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Chestnut-headed Tanager
Thlypopsis pyrrhocoma
- 19.5 × 14.5 mm (approx.)
White, sparsely spotted with dull and blackish brown, the spots crowded toward the blunt end.
Sources of information
- Size
- Ihering, H. von 1900. Catalogo critico-comparativo dos ninhos e ovos das aves do Brazil. Revista do Museu Paulista 4: 191-300., p. 227.
- Description
- Nehrkorn, A. 1899. Katalog der Eiersammlung nebst Beschreibungen der aussereuropäischen Eier. Braunschweig., p. 97.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Chestnut-throated Seedeater
Sporophila telasco
- 16.6 × 12.4 mm
Greenish to bluish white, almost matt, with black spots, blotches and short lines mostly in a zone round the blunt end and little elsewhere.
Sources of information
- Size
- Average of 40 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 266.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 164.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Chestnut-vented Conebill
Conirostrum speciosum
- 16.73 × 12.37 mm
- Clutch: 3 eggs
show all 11
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, VenezuelaBluish-green with brown spots around the large end.
Sources of information
- Size
- Average of 3 eggs: Ribon & Simon 1997, Orn. Neotrop. 8: 71-72.
- Description
- Ribon, R. & Simon, J.E. 1997. The nest and eggs of the Chestnut-vented Conebill Conirostrum speciosum. Ornitología Neotropical 8: 71-72.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cinereous Conebill
Conirostrum cinereum
- 18.3 × 13 mm
- Clutch: 2–3 eggs
Pale blue with numerous small purplish-grey spots.
Sources of information
- Size
- Average of 7 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 351.
- Description
- Red de Observadores de Aves de Chile, species sheet 'Comesebo chico' (2024), citing Goodall, Johnson & Philippi 1946, Las Aves de Chile.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cinereous Finch
Piezorina cinerea
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cinereous Warbling Finch
Microspingus cinereus
- 18.7 × 13.9 mm
White to greenish white with small sharp dark olive-brown, black and grey spots and dots, mainly at the blunt end.
Sources of information
- Size
- Average of 25 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pp. 256, 257.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 157.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cinnamon Tanager
Schistochlamys ruficapillus
- 24.7 × 17 mm
Dark cream, evenly and very densely freckled all over with fine lengthwise dark olive-brown to sepia marks, the ground showing only in narrow gaps.
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 307.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 244.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cinnamon Warbling Finch
Poospiza ornata
- 17 × 14 mm (approx.)
- Clutch: 3 eggs
Whitish, with brown spots all over.
Sources of information
- Size
- de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 195.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Cinnamon-bellied Flowerpiercer
Diglossa baritula
- 16.1 × 12.7 mm
Light bluish green (sometimes greyish, whitish or clearly blue), fairly densely spotted and dotted with grey, red-brown and blackish, crowded at the blunt end.
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 320.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 264.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cinnamon-bellied Saltator
Saltator grandis
- 27.2 × 19.7 mm (approx.)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
Pale blue, with black spots and scrawls at the larger end (estimated from other saltators).
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Cinnamon-rumped Seedeater
Sporophila torqueola
- 15.78 × 12.28 mm (approx.)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
- Clutch: 2–4 eggs
Pale bluish grey, blotched and spotted with dark brown (as described for the former White-collared Seedeater).
Sources of information
- Size
- Average of 4 eggs: Stoddard, M. C., et al. 2017. Avian egg shape: form, function, and evolution. Science 356: 1249-1254 (Data S1, MVZ egg collection).
- Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31), (Morelet's Seedeater eggs, as White-collared Seedeater).
Agrees with: Hauber, M.E. et al. 2014. The Book of Eggs. Univ. Chicago Press., p. 573 (as White-collared Seedeater, before the split; not this species as now defined). - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
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Citron-headed Yellow Finch
Sicalis luteocephala
- 20.5 × 15 mm (approx.)
- Clutch: 4 eggs
White, unmarked.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 257.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Coal-crested Finch
Charitospiza eucosma
- 16.32 × 11.3 mm
- Clutch: 2 eggs
Pale blue-green with brown spots (vague description).
Sources of information
- Size
- Average of 46 eggs: Diniz, P., Ramos, D.M. & Chemin, N. 2013. Breeding biology of Coal-crested Finches. Wilson J. Ornithol. 125: 592-599.
- Description
- Wikipedia 'Coal-crested finch', citing Diniz & Santos 2020 BOW.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cochabamba Mountain Finch
Poospiza garleppi
- 19 × 14.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-and-chestnut Warbling Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Poospiza baeri, Poospiza hispaniolensis, Poospiza nigrorufa, Poospiza ornata, Poospiza whitii.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-chestnut Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cocos Finch
Pinaroloxias inornata
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Collared Warbling Finch
Poospiza hispaniolensis
- 18.7 × 14.9 mm
Sky blue, spotted with black at the blunt end, occasionally a few fine black lines and rarely black spots elsewhere; no gloss; very like a Song Thrush egg.
Sources of information
- Size
- Average of 13 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 256.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 157.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Common Cactus Finch
Geospiza scandens
- 19.9 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Geospiza acutirostris, Geospiza conirostris, Geospiza difficilis, Geospiza fortis, Geospiza fuliginosa ….
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
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Cone-billed Tanager
Conothraupis mesoleuca
- 21 × 15.6 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-and-white Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conothraupis speculigera.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-white Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Copper Seedeater
Sporophila bouvreuil
- 16.5 × 12.5 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Chestnut-throated Seedeater egg (same genus).
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 265.
- Description
- Estimated, no description found: drawn like a related egg (Chestnut-throated Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Crimson-backed Tanager
Ramphocelus dimidiatus
- 22.4 × 17.1 mm
- Clutch: 2 eggs
Light blue, thickly sprinkled with irregular black spots of various sizes, some pale lilac spots and black scrawls, heavier at the larger end.
Sources of information
- Size
- Average of 4 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 169.
- Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31), p. 169; supporting: Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panama, part 4.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Crimson-breasted Finch
Rhodospingus cruentus
- 17.7 × 12.9 mm
Pure white, unmarked; some gloss.
Sources of information
- Size
- Average of 31 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Crimson-collared Tanager
Ramphocelus sanguinolentus
- 21.5 × 16.2 mm
Pale blue, sparingly spotted with black over grey underlying marks (as other Ramphocelus).
Sources of information
- Size
- Average of 3 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 312.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Crimson-fronted Cardinal
Paroaria baeri
- 22.4 × 16.4 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Red-capped Cardinal egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Paroaria capitata, Paroaria coronata, Paroaria dominicana, Paroaria gularis, Paroaria nigrogenis.
- Description
- Estimated, no description found: drawn like a related egg (Red-capped Cardinal).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Cuban Bullfinch
Melopyrrha nigra
- 19 × 14 mm (approx.)
White to reddish grey, with dull brownish clouds, spots and scrawls and occasional black streaks; dull.
Sources of information
- Size
- Nehrkorn, A. 1899. Katalog der Eiersammlung nebst Beschreibungen der aussereuropäischen Eier. Braunschweig.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Cuban Grassquit
Phonipara canora
- 16 × 12 mm
White, with fine grey and brownish dots spread over the whole egg; very thin-shelled.
Sources of information
- Size
- Average of 18 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 266.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Dark-throated Seedeater
Sporophila ruficollis
- 16 × 12.5 mm
- Clutch: 3 eggs
Pale bluish white, with black, ochre and grey spots all over, most at the larger end.
Sources of information
- Size
- Average of 5 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 127.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 127. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Diademed Tanager
Stephanophorus diadematus
- 25.75 × 16.75 mm (approx.)
- Clutch: 4 eggs
Pale green or greenish white, spotted, small-blotched and short-streaked dark brown and grey, concentrated at the larger end; somewhat glossy.
Sources of information
- Size
- de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 273.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12); secondary: Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Diuca Finch
Diuca diuca
- 23.61 × 16.71 mm
Pale green, covered with dark brown and lavender-grey spots, mottling and streaks; glossy.
Sources of information
- Size
- Average of 6 eggs: Stoddard, M. C., et al. 2017. Avian egg shape: form, function, and evolution. Science 356: 1249-1254 (Data S1, MVZ egg collection).
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 249. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Dotted Tanager
Ixothraupis varia
- 21.6 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Speckled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Ixothraupis guttata.
- Description
- Estimated, no description found: drawn like a related egg (Speckled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Double-collared Seedeater
Sporophila caerulescens
- 17.3 × 12.3 mm
- Clutch: 3 eggs
Whitish, cream or greenish white, spotted brown and grey with black dots all over; almost glossless.
Sources of information
- Size
- Average of 25 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 141.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12); secondary: Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 141. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Drab Hemispingus
Pseudospingus xanthophthalmus
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Drab Seedeater
Sporophila simplex
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
Bluish grey to pale olive-green, with many irregular, partly very large spots in pale grey or yellowish grey, olive and black; very slightly glossy.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 163.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Dubois's Seedeater
Sporophila ardesiaca
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Duida Grass Finch
Emberizoides duidae
- 22 × 16.4 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Lesser Grass Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Emberizoides herbicola, Emberizoides ypiranganus.
- Description
- Estimated, no description found: drawn like a related egg (Lesser Grass Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Dull-colored Grassquit
Asemospiza obscura
- 16.9 × 13 mm (approx.)
White or whitish, spotted with brown and chestnut all over, more at the larger end.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 239. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Dusky-faced Tanager
Mitrospingus cassinii
- 27.2 × 16.8 mm (approx.)
White with grey and reddish-brown blotches at the blunt end; lustreless, long oval.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 309.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 247.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Eastern Chat-Tanager
Calyptophilus frugivorus
- 23.5 × 18 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
White with brown spots.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Calyptophilus tertius.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 241.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Emerald Tanager
Tangara florida
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Espanola Cactus Finch
Geospiza conirostris
- 22.4 × 16 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Average of 14 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 269.
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Fawn-breasted Tanager
Pipraeidea melanonota
- 22.6 × 17.9 mm
- Clutch: 3 eggs
show all 9
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, Paraguay, Peru, Uruguay, VenezuelaPale greenish white, heavily smudged and spotted with brown and grey, densest at the large end.
Sources of information
- Size
- Average of 3 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 279.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 279. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Flame-crested Tanager
Loriotus cristatus
- 22.5 × 17 mm (approx.)
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaWhite with little gloss; deep reddish dots and small spots and a few larger black spots.
Sources of information
- Size
- Ihering, H. von 1900. Catalogo critico-comparativo dos ninhos e ovos das aves do Brazil. Revista do Museu Paulista 4: 191-300., p. 226.
- Description
- Ihering 1900 (Revista do Museu Paulista 4).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Flame-faced Tanager
Tangara parzudakii
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Flame-rumped Tanager
Ramphocelus flammigerus
- 23.9 × 17.4 mm (approx.)
Pale blue, spotted with black over grey underlying marks, more heavily than Passerini's Tanager.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Fulvous Shrike-Tanager
Lanio fulvus
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
Pale greenish white tinted lilac, thickly speckled and mottled with brown and lilac grey, densest at the larger end; glossless.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Fulvous-crested Tanager
Tachyphonus surinamus
- 23.5 × 18.5 mm
Whitish, with a few large blackish-brown spots, mostly rounded but some drawn out, a few lengthwise worm-like marks, and many tiny dark dots and small grey spots.
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 309.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 248.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Fulvous-headed Tanager
Thlypopsis fulviceps
- 19.5 × 14.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut-headed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Thlypopsis pyrrhocoma, Thlypopsis ruficeps, Thlypopsis sordida.
- Description
- Estimated, no description found: drawn like a related egg (Chestnut-headed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Genovesa Cactus Finch
Geospiza propinqua
- 21.38 × 15.76 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Average of 78 eggs: Grant, P.R. 1982. Variation in the size and shape of Darwin's finch eggs. Auk 99: 15-23.
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Genovesa Ground Finch
Geospiza acutirostris
- 17.99 × 13.61 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Average of 121 eggs: Grant, P.R. 1982. Variation in the size and shape of Darwin's finch eggs. Auk 99: 15-23.
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Giant Conebill
Conirostrum binghami
- 17.8 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Bicolored Conebill egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conirostrum cinereum, Conirostrum ferrugineiventre, Conirostrum sitticolor, Conirostrum speciosum.
- Description
- Estimated, no description found: drawn like a related egg (Bicolored Conebill).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Gilt-edged Tanager
Tangara cyanoventris
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Glacier Finch
Idiopsar speculifer
- 26.4 × 17.7 mm
Green, speckled and blotched with brown and violet.
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 255.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Glaucous Tanager
Thraupis glaucocolpa
- 23.2 × 16.6 mm
Pale, heavily spotted with red-brown (almost hiding the ground) or marked with lilac.
Sources of information
- Size
- Average of 3 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 313.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 254.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Glistening-green Tanager
Chlorochrysa phoenicotis
- 21.8 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Orange-eared Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Chlorochrysa calliparaea, Chlorochrysa nitidissima.
- Description
- Estimated, no description found: drawn like a related egg (Orange-eared Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Glossy Flowerpiercer
Diglossa lafresnayii
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Gold-ringed Tanager
Bangsia aureocincta
- 26.5 × 18.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Moss-backed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Bangsia edwardsi.
- Description
- Estimated, no description found: drawn like a related egg (Moss-backed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Golden Tanager
Tangara arthus
- 22.3 × 15.7 mm (approx.)
Milky white, spotted all over with red-brown like a Great Tit egg, mainly at the blunt end, with distinct grey-lilac underlying spots.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 317.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 259.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Golden-backed Mountain Tanager
Cnemathraupis aureodorsalis
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Golden-billed Saltator
Saltator aurantiirostris
- 26.7 × 20.1 mm (approx.)
- Clutch: 3 eggs
Pale greenish blue, with a wreath of fine black scrawls and lines at the large end, a few dots elsewhere.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 174. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Golden-chested Tanager
Bangsia rothschildi
- 26.5 × 18.2 mm (estimated)
- Speculative: we haven't found a description of this egg (a source we checked reports it as undescribed), so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Moss-backed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Bangsia edwardsi.
- Description
- Robbins & Glenn 1988, Condor 90: 947-948 (eggs unknown for all members of the Bangsia/Buthraupis complex other than edwardsi; species not named individually) (says the egg has not been described).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Golden-chevroned Tanager
Thraupis ornata
- 25 × 17.5 mm
White, with little gloss, thickly clouded and blotched with purplish grey, with scattered deep purplish-brown spots and streaks.
Sources of information
- Size
- Average of 8 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 313.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Golden-collared Honeycreeper
Iridophanes pulcherrimus
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Golden-collared Tanager
Iridosornis jelskii
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Golden-crowned Tanager
Iridosornis rufivertex
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Golden-eared Tanager
Tangara chrysotis
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Golden-eyed Flowerpiercer
Diglossa glauca
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Golden-hooded Tanager
Stilpnia larvata
- 20.2 × 14.8 mm
- Clutch: 2 eggs
show all 9
Mexico: MexicoCentral America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
South America: Colombia, Ecuador
Dull white or pale grey, thickly flecked with brown or chocolate, heaviest on the large end; some with black spots.
Sources of information
- Size
- Average of 25 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 204.
Agrees with: Skutch 1954, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 420. - Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Golden-naped Tanager
Chalcothraupis ruficervix
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Grass-green Tanager
Chlorornis riefferii
- 30 × 20.3 mm (approx.)
Greyish white, thickly mottled and freckled with pale brown and lavender grey, chiefly at the broad end; moderately glossy.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grassland Yellow Finch
Sicalis luteola
- 17.63 × 13.44 mm
- Clutch: 3–6 eggs
show all 20
Mexico: MexicoCentral America: Belize, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago, Caribbean islands
South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
White, cream or pale bluish white, thickly speckled and spotted bright reddish brown and chestnut over pale violet-grey under-marks, usually forming a ring or cap at the blunt end.
Sources of information
- Size
- Salvador, S. A. & Salvador, L. A. 1986. Nota sobre la reproducción del misto (Sicalis luteola) en Córdoba, Argentina. El Hornero 12: 274-280., p. 277 (Table 1, p. 278).
Agrees with: Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum (Natural History), Vol. 5. London: British Museum. [Sycalis luteola; normal eggs .64-.8 x .5-.57 in = 16.3-20.3 x 12.7-14.5 mm; two abnormal large eggs; Uruguay, Argentina, Chile], p. 219. - Description
- Salvador, S. A. & Salvador, L. A. 1986 (Córdoba, Argentina); supporting: British Museum Catalogue of the Collection of Birds' Eggs (BM).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 42. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Great Inca Finch
Incaspiza pulchra
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Great-billed Seed Finch
Sporophila maximiliani
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Greater Antillean Bullfinch
Melopyrrha violacea
- 21.17 × 16.73 mm
- Clutch: 3 eggs
Very pale bluish-white.
Sources of information
- Size
- Average of 3 eggs: Bond J 1943, Nidification of the passerine birds of Hispaniola. Wilson Bull. 55(2): 115-125.
- Description
- Bond J 1943, Nidification of the passerine birds of Hispaniola. Wilson Bull. 55(2): 115-125.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Greater Flowerpiercer
Diglossa major
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Greater Yellow Finch
Sicalis auriventris
- 23.3 × 16.1 mm (approx.)
- Clutch: 3 eggs
Pale greenish blue, with grey and brown spots.
Sources of information
- Size
- de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 20.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Green Honeycreeper
Chlorophanes spiza
- 21.6 × 14.5 mm
- Clutch: 2 eggs
show all 17
Mexico: MexicoCentral America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Dull white, finely speckled with reddish brown, chiefly in a wreath on the large end.
Sources of information
- Size
- Average of 2 eggs: Skutch, A. F. 1981. New Studies of Tropical American Birds. Publications of the Nuttall Ornithological Club 19. Cambridge, Mass., Green Honeycreeper account, 'Nest and eggs' (scan leaf ~208-211; printed page not seen).
Agrees with: Skutch, A. F. 1962. Life histories of honeycreepers. The Condor 64(2): 92-116. [full set of 2 eggs, white with a wreath of brown spots on the large end; no measurements], p. 96. - Description
- Wetmore, A. et al. 1984. The Birds of the Republic of Panamá, part 4; supporting: Skutch, A. F. 1962/1981 (as quoted in earlier research).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Green Warbler-Finch
Certhidea olivacea
- 18 × 13 mm
- Clutch: 3–4 eggs
Whitish with darker spots.
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 269.
- Description
- oiseaux-birds.com species card (paraphrasing del Hoyo et al., HBW vol. 16).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Green-and-gold Tanager
Tangara schrankii
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Green-capped Tanager
Stilpnia meyerdeschauenseei
- 21.1 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scrub Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Stilpnia cayana, Stilpnia cucullata, Stilpnia cyanoptera, Stilpnia heinei, Stilpnia larvata ….
- Description
- Estimated, no description found: drawn like a related egg (Scrub Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Green-headed Tanager
Tangara seledon
- 20.5 × 15 mm
- Clutch: 3 eggs
Light flesh-coloured, finely dotted all over with darker points, about a dozen large yellowish-brown blotches with fine black scrawls.
Sources of information
- Size
- Average of 6 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 317.
- Description
- Euler 1900 (Revista do Museu Paulista 4).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Green-naped Tanager
Tangara fucosa
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Green-tailed Warbler
Microligea palustris
- 19.6 × 14.75 mm
Decidedly greenish ground with brown spotting (markings estimated).
Sources of information
- Size
- Average of 2 eggs: Bond J 1943, Nidification of the passerine birds of Hispaniola. Wilson Bull. 55(2): 115-125.
- Description
- Bond J 1943, Nidification of the passerine birds of Hispaniola. Wilson Bull. 55(2): 115-125.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Green-winged Saltator
Saltator similis
- 25.8 × 18.7 mm
- Clutch: 3 eggs
Pale blue, with small black blotches at the large end.
Sources of information
- Size
- Average of 6 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 168.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Greenish Yellow Finch
Sicalis olivascens
- 21.1 × 15.8 mm
- Clutch: 3 eggs
Pale greenish blue, finely speckled brown and chestnut all over, most at the larger end.
Sources of information
- Size
- Average of 10 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 22.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 23. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey Pileated Finch
Coryphospingus pileatus
- 19.8 × 14.9 mm
Somewhat glossy, pure white or very faintly bluish, unmarked.
Sources of information
- Size
- Average of 10 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 173.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Grey Seedeater
Sporophila intermedia
- 20.9 × 12.85 mm
Cream, greenish grey or dull greyish white, marbled with umber-brown and grey spots and blotches (or reddish cinnamon and hazel with a few almost black spots), sometimes a few short worm-lines, often a wreath; fairly glossy.
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 162.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 162.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey Warbler-Finch
Certhidea fusca
- 16.75 × 13.33 mm
White with matt grey-brown spots in various shades.
Sources of information
- Size
- Average of 34 eggs: Grant, P.R. 1982. Variation in the size and shape of Darwin's finch eggs. Auk 99: 15-23.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 167.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-and-gold Tanager
Poecilostreptus palmeri
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-bellied Flowerpiercer
Diglossa carbonaria
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Grey-capped Hemispingus
Kleinothraupis reyi
- 21.1 × 15.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Kleinothraupis atropileus.
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-crested Finch
Lophospingus griseocristatus
- 18.5 × 13.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-crested Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Lophospingus pusillus.
- Description
- Estimated, no description found: drawn like a related egg (Black-crested Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-crowned Palm-tanager
Phaenicophilus poliocephalus
- 24.3 × 17.4 mm
Very pale grey-green or whitish, washed all over (mostly lengthwise) with mouse-grey to cinnamon, lilac-grey and brown marks, hinting at a wreath, sometimes with black hair-lines and short blackish-brown spots.
Sources of information
- Size
- Average of 7 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 308.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 246.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-headed Tanager
Eucometis penicillata
- 24.2 × 17.3 mm
- Clutch: 2 eggs
show all 16
Mexico: MexicoCentral America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
South America: Bolivia, Brazil, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Venezuela
Pale blue-grey, heavily overlaid and mottled with dark brown, almost masking the ground at the thick end.
Sources of information
- Size
- Average of 12 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 186.
Agrees with: Skutch 1954, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 480. - Description
- Skutch 1954 (Pacific Coast Avifauna 31).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-hooded Bush Tanager
Cnemoscopus rubrirostris
- 22.9 × 17 mm (approx.)
Creamy white, densely mottled at the broad end and sparsely elsewhere with very pale reddish brown and lavender; slight gloss.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-hooded Sierra Finch
Phrygilus gayi
- 21.4 × 15.8 mm
Pale greenish blue with fine brown spots.
Sources of information
- Size
- Average of 35 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 253.
- Description
- Hauber, M.E. (ed.), Bates, J. & Becker, B. 2014. The Book of Eggs. University of Chicago Press (FMNH 2495).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 51. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Grey-throated Warbling Finch
Microspingus cabanisi
- 21.2 × 15 mm
- Clutch: 3 eggs
Bluish green, with black spots.
Sources of information
- Size
- Average of 6 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 256.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Grey-winged Inca Finch
Incaspiza ortizi
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Guira Tanager
Hemithraupis guira
- 18 × 13 mm (approx.)
- Clutch: 2 eggs
show all 11
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, VenezuelaWhite, with cinnamon-brown spots at the large end.
Sources of information
- Size
- de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 5.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Hispaniolan Spindalis
Spindalis dominicensis
- 22.93 × 16.57 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
- Clutch: 2–3 eggs
Bluish, spotted with reddish brown at the blunt end.
Sources of information
- Size
- Average of 3 eggs: Bond J 1943, Nidification of the passerine birds of Hispaniola. Wilson Bull. 55(2): 115-125.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 251.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Hooded Mountain Tanager
Buthraupis montana
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Hooded Tanager
Nemosia pileata
- 19 × 14 mm (approx.)
show all 10
South America: Argentina, Bolivia, Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, VenezuelaBluish, somewhat glossy, spotted with brown, purple-brown and blackish brown over lilac-grey underlying spots.
Sources of information
- Size
- Penard, F. P. & A. P. Penard 1910. De vogels van Guyana (Suriname, Cayenne en Demerara), deel 2. Paramaribo., p. 456.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 246.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Huallaga Tanager
Ramphocelus melanogaster
- 22.4 × 17 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Crimson-backed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Ramphocelus bresilia, Ramphocelus carbo, Ramphocelus dimidiatus, Ramphocelus flammigerus, Ramphocelus nigrogularis ….
- Description
- Estimated, no description found: drawn like a related egg (Crimson-backed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Ibera Seedeater
Sporophila iberaensis
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Indigo Flowerpiercer
Diglossa indigotica
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Inti Tanager
Heliothraupis oneilli
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Jamaican Spindalis
Spindalis nigricephala
- 21.3 × 15.2 mm (approx.)
Greenish white, heavily blotched with burnt umber over paler greyish-brown spots, thickest at the larger end; no gloss.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Lacrimose Mountain Tanager
Anisognathus lacrymosus
- 21.9 × 16.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scarlet-bellied Mountain Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Anisognathus igniventris, Anisognathus somptuosus.
- Description
- Estimated, no description found: drawn like a related egg (Scarlet-bellied Mountain Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Large Ground Finch
Geospiza magnirostris
- 22.23 × 16.62 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Average of 112 eggs: Grant, P.R. 1982. Variation in the size and shape of Darwin's finch eggs. Auk 99: 15-23.
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
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Large Tree Finch
Camarhynchus psittacula
- 19 × 14 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Mangrove Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Camarhynchus parvulus.
- Description
- Estimated, no description found: drawn like a related egg (Mangrove Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
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Large-billed Seed Finch
Sporophila crassirostris
- 22.9 × 15.9 mm (approx.)
show all 10
Central America: PanamaSouth America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Very light buff, covered with dark and pale chocolate-brown spots, blotches and clouds over pinkish-grey undermarks; faintly glossy.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Lesser Antillean Bullfinch
Loxigilla noctis
- 20.8 × 14.9 mm
White, spotted and blotched with reddish brown over purplish grey, mainly toward the larger end; glossless.
Sources of information
- Size
- Average of 18 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 268.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Lesser Antillean Saltator
Saltator albicollis
- 26.5 × 18 mm
- Clutch: 2–3 eggs
Light greenish blue with black spots and fine scrawls, mostly towards the larger end.
Sources of information
- Size
- Average of 27 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 277.
- Description
- Wikipedia: Lesser Antillean saltator (accessed Oct 2026); supporting: Wetmore, A., Pasquier, R. F. & Olson, S. L. 1984. The Birds of the Republic of Panama, Part 4. Smithsonian Misc. Coll. 150(4).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Lesser Antillean Tanager
Stilpnia cucullata
- 22.7 × 16.4 mm (approx.)
White, spotted and blotched with purplish brown and lilac grey.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Lesser Grass Finch
Emberizoides ypiranganus
- 21.2 × 15.9 mm
- Clutch: 3 eggs
White, with reddish and black blotches and spots concentrated at the large end.
Sources of information
- Size
- Average of 68 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 192.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Lesson's Seedeater
Sporophila bouvronides
- 17.35 × 12.43 mm
- Clutch: 2 eggs
Greyish white (white, bluish, reddish or buff tints), spotted light and dark brown, reddish brown and purplish.
Sources of information
- Size
- Average of 50 eggs: Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 269.
- Description
- Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zool. Meded. 24.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Lined Seedeater
Sporophila lineola
- 17.4 × 12.8 mm
Pale bluish grey, blotched and spotted with dark brown (like the White-collared Seedeater).
Sources of information
- Size
- Average of 9 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 117.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Little Inca Finch
Incaspiza watkinsi
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Long-tailed Reed Finch
Donacospiza albifrons
- 19.5 × 14.5 mm
- Clutch: 3 eggs
White, with a few small chestnut and black spots at the large end.
Sources of information
- Size
- Average of 12 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 234.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 234. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Magpie Tanager
Cissopis leverianus
- 29 × 20.2 mm
show all 9
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, Guyana, Paraguay, Peru, VenezuelaReddish-brown ground with smudged rust-brown spots spread evenly over the whole egg.
Sources of information
- Size
- Average of 11 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 307.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Mangrove Finch
Camarhynchus heliobates
- 19 × 14 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
- Clutch: 4 eggs
Whitish with darker spots.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Camarhynchus parvulus.
- Description
- oiseaux-birds.com species card (paraphrasing del Hoyo et al., HBW vol. 16).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Many-colored Chaco Finch
Saltatricula multicolor
- 21.76 × 15.16 mm
White, with scattered sharp deep-black small spots.
Sources of information
- Size
- Average of 4 eggs: Stoddard, M. C., et al. 2017. Avian egg shape: form, function, and evolution. Science 356: 1249-1254 (Data S1, MVZ egg collection).
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 155. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Marsh Seedeater
Sporophila palustris
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Masked Cardinal
Paroaria nigrogenis
- 20.2 × 14.7 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Yellow-billed Cardinal egg (same genus).
Sources of information
- Size
- Average of 11 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 276.
- Description
- Estimated, no description found: drawn like a related egg (Yellow-billed Cardinal).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Masked Crimson Tanager
Ramphocelus nigrogularis
- 21.6 × 15.2 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Crimson-collared Tanager egg (same genus).
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 312.
- Description
- Estimated, no description found: drawn like a related egg (Crimson-collared Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Masked Flowerpiercer
Diglossa cyanea
- 20.3 × 15 mm (approx.)
Light bluish green, fairly densely spotted and dotted with grey, red-brown and blackish, more crowded at the blunt end.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 264.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Masked Mountain Tanager
Tephrophilus wetmorei
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Masked Saltator
Saltator cinctus
- 26.5 × 19 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Lesser Antillean Saltator egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Saltator albicollis, Saltator atriceps, Saltator atripennis, Saltator aurantiirostris, Saltator coerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Lesser Antillean Saltator).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Masked Tanager
Stilpnia nigrocincta
- 20.2 × 14.8 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
- Clutch: 2 eggs
Dull white or pale grey, thickly sprinkled brown flecks heaviest at the larger end (as for Golden-hooded Tanager).
Sources of information
- Size
- Average of 25 eggs: Skutch 1954 (Pacific Coast Avifauna 31), ["p. 204"].
- Description
- relative: Skutch 1954 (Pacific Coast Avifauna 31).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Medium Ground Finch
Geospiza fortis
- 19.9 × 15 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Average of 37 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 268.
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Medium Tree Finch
Camarhynchus pauper
- 19 × 14 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Mangrove Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Camarhynchus parvulus.
- Description
- Estimated, no description found: drawn like a related egg (Mangrove Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Merida Flowerpiercer
Diglossa gloriosa
- 17.5 × 12.5 mm (approx.)
Light bluish green, fairly densely spotted and dotted with grey, red-brown and blackish, more crowded at the blunt end.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 320.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 264.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Metallic-green Tanager
Tangara labradorides
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Monte Yellow Finch
Sicalis mendozae
- 19.1 × 14.2 mm (approx.)
White, unmarked.
Sources of information
- Size
- de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 25.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Morelet's Seedeater
Sporophila morelleti
- 16.3 × 12.7 mm
- Clutch: 2 eggs
show all 9
Canada & United States: United StatesMexico: Mexico
Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
Pale blue to bluish white or pearl-grey, finely mottled light brown or chocolate, heaviest in a wreath at the thick end; some with black blotches.
Sources of information
- Size
- Average of 13 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 37.
Agrees with: Skutch 1954, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 566. - Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Moss-backed Tanager
Bangsia edwardsi
- 26.5 × 18.2 mm (approx.)
- Clutch: 2 eggs
White, non-glossy; fine red-brown speckles at the small end becoming heavier blotches in a dense ring at the large end.
Sources of information
- Size
- Richart, C.H. & Burns, K.J. 2020. Moss-backed Tanager (Bangsia edwardsi). Birds of the World.
- Description
- Robbins & Glenn 1988, First description of the nest and eggs of the Moss-backed Tanager, Condor 90: 947-948.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Mourning Sierra Finch
Rhopospina fruticeti
- 24.87 × 17.45 mm
- Clutch: 2 eggs
Pale blue-green, densely speckled all over with brown and grey.
Sources of information
- Size
- Average of 5 eggs: Stoddard, M. C., et al. 2017. Avian egg shape: form, function, and evolution. Science 356: 1249-1254 (Data S1, MVZ egg collection).
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 68. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Moustached Flowerpiercer
Diglossa mystacalis
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Multicolored Tanager
Chlorochrysa nitidissima
- 21.45 × 15 mm
- Clutch: 1 egg
White with brown spots.
Sources of information
- Size
- Average of 2 eggs: Loaiza-Muñoz et al. 2017, Wilson J. Ornithol. 129: 207-212.
- Description
- Loaiza-Muñoz, M.A., Mosquera-Muñoz, D.M., Bermúdez-Vera, J.C. & Londoño, G.A. 2017. First description of the nest, egg, and nestling of Multicolored Tanager (Chlorochrysa nitidissima). Wilson J. Ornithol. 129: 207-212.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Nicaraguan Seed Finch
Sporophila nuttingi
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Oleaginous Hemispingus
Sphenopsis frontalis
- 21 × 17 mm (approx.)
White, nearly spherical.
Sources of information
- Size
- Nehrkorn, A. 1899. Katalog der Eiersammlung nebst Beschreibungen der aussereuropäischen Eier. Braunschweig.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Olive-backed Tanager
Mitrospingus oleagineus
- 27.2 × 16.8 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Dusky-faced Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Mitrospingus cassinii.
- Description
- Estimated, no description found: drawn like a related egg (Dusky-faced Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Olive-green Tanager
Orthogonys chloricterus
- 27.2 × 16.8 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Dusky-faced Tanager egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Mitrospingus cassinii.
- Description
- Estimated, no description found: drawn like a related egg (Dusky-faced Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Olive-grey Saltator
Saltator olivascens
- 26.18 × 19.04 mm
Pale blue or greenish blue with a zone or cap of fine black hair lines at the larger end.
Sources of information
- Size
- Average of 50 eggs: Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., pp. 270–271.
- Description
- Hellebrekers, W.Ph.J. (1942). Revision of the Penard oological collection from Surinam. Zoologische Mededelingen 24.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Opal-crowned Tanager
Tangara callophrys
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Opal-rumped Tanager
Tangara velia
- 22 × 17 mm (approx.)
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaGreyish white with fine greyish-yellow to blackish-grey spots evenly spread over the whole egg.
Sources of information
- Size
- Nehrkorn, A. 1899. Katalog der Eiersammlung nebst Beschreibungen der aussereuropäischen Eier. Braunschweig.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Orange-browed Hemispingus
Kleinothraupis calophrys
- 21.1 × 15.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Kleinothraupis atropileus.
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Orange-eared Tanager
Chlorochrysa calliparaea
- 22.1 × 15.5 mm
- Clutch: 1 egg
White with small light-brown speckles, dense at the large end and thinning toward the small end.
Sources of information
- Size
- Average of 4 eggs: Sánchez Martínez & Londoño 2012, Wilson J. Ornithol. 124: 380-384.
- Description
- Sánchez Martínez, M.A. & Londoño, G.A. 2012. First nesting information for the Orange-eared Tanager (Chlorochrysa calliparea). Wilson J. Ornithol. 124: 380-384.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Orange-fronted Yellow Finch
Sicalis columbiana
- 17.4 × 13.3 mm
Dull white (faintly greenish when fresh) with many sharp dark brown or blackish-grey to sepia small and medium spots all over, coarser and denser at the top; little gloss.
Sources of information
- Size
- Average of 21 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 257.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 158.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Orange-headed Tanager
Thlypopsis sordida
- 19.5 × 15.5 mm
- Clutch: 3 eggs
Bluish white, spotted brown and cinnamon.
Sources of information
- Size
- Average of 2 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 211.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Orange-throated Tanager
Wetmorethraupis sterrhopteron
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Orangequit
Euneornis campestris
- 18.5 × 14.7 mm
Pinkish white, blotched and mottled all over with brown and pale lilac-red; almost glossless.
Sources of information
- Size
- Average of 5 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 320.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Orinoco Saltator
Saltator orenocensis
- 26.5 × 19 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Lesser Antillean Saltator egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Saltator albicollis, Saltator atriceps, Saltator atripennis, Saltator aurantiirostris, Saltator coerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Lesser Antillean Saltator).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Palm Tanager
Thraupis palmarum
- 23.75 × 17.11 mm
- Clutch: 1–3 eggs
show all 16
Central America: Costa Rica, Honduras, Nicaragua, PanamaThe Caribbean: Trinidad and Tobago
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela
Cream to rusty buff, heavily blotched and spotted with rusty and dark brown over the whole egg, densest at the large end, with purplish undermarks.
Sources of information
- Size
- Average of 30 eggs: Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 271.
- Description
- Hauber et al. 2014, The Book of Eggs, p. 571; supporting: Hellebrekers 1942, Zoologische Mededelingen 24 (Penard egg collection, Suriname).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Pampa Finch
Embernagra platensis
- 24.6 × 18.3 mm
White, with ochre-brown and black spots and small blotches, chiefly at the broad end.
Sources of information
- Size
- Average of 45 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 258.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 184. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Paradise Tanager
Tangara chilensis
- 19.8 × 15.3 mm
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaWhite or greenish white with many lilac and purplish-red spots and blotches, forming a zone or cap round the larger end; slightly glossy.
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 317.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Paramo Seedeater
Catamenia homochroa
- 19.4 × 13.1 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
- Clutch: 2 eggs
Pale blue with violet spots concentrated toward the larger end.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Catamenia analis, Catamenia inornata.
- Description
- Chaparro-Herrera, S., Montoya, P. & Barreto Borges, O. 2015. Primera descripción del nido y huevos del Semillero Paramuno (Catamenia homochroa). Ornitología Neotropical 26: 295-298.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Pardusco
Nephelornis oneilli
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Parodi's Hemispingus
Kleinothraupis parodii
- 21.1 × 15.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Kleinothraupis atropileus.
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Parrot-billed Seedeater
Sporophila peruviana
- 18 × 12.8 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Wing-barred Seedeater egg (same genus).
Sources of information
- Size
- Average of 33 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 265.
- Description
- Estimated, no description found: drawn like a related egg (Wing-barred Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Patagonian Sierra Finch
Phrygilus patagonicus
- 22 × 15.6 mm
- Clutch: 3 eggs
Pale green, densely speckled with brown and grey, a little more at the large end.
Sources of information
- Size
- Average of 4 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 56.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 56. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Patagonian Yellow Finch
Sicalis lebruni
- 22.4 × 16.1 mm
- Clutch: 4 eggs
White, unmarked, slightly glossy.
Sources of information
- Size
- Average of 4 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 28.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 29. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Pearly-bellied Seedeater
Sporophila pileata
- 17.7 × 13 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Black-and-white Seedeater egg (same genus).
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 265.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-white Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Pearly-breasted Conebill
Conirostrum margaritae
- 17.8 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Bicolored Conebill egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conirostrum cinereum, Conirostrum ferrugineiventre, Conirostrum sitticolor, Conirostrum speciosum.
- Description
- Estimated, no description found: drawn like a related egg (Bicolored Conebill).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Peg-billed Finch
Acanthidops bairdi
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Peruvian Sierra Finch
Phrygilus punensis
- 22 × 15.8 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Patagonian Sierra Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Phrygilus atriceps, Phrygilus gayi, Phrygilus patagonicus.
- Description
- Estimated, no description found: drawn like a related egg (Patagonian Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Plain-colored Seedeater
Catamenia inornata
- 19.73 × 14.2 mm
- Clutch: 4 eggs
Pale greenish-blue with brown and dark brown spots and dots, mostly at the blunt end.
Sources of information
- Size
- Average of 4 eggs: Hornero 13: 244 (c. 1992), Comunicaciones.
- Description
- El Hornero 13 (1992): 244 note; secondary: Hornero 13: 244 (c. 1992), Comunicaciones note (authors not captured).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 88. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Plain-colored Tanager
Tangara inornata
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
Whitish, spotted.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 258.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Plain-tailed Warbling Finch
Microspingus alticola
- 19.1 × 14.4 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Rusty-browed Warbling Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Microspingus cabanisi, Microspingus cinereus, Microspingus erythrophrys, Microspingus lateralis, Microspingus melanoleucus ….
- Description
- Estimated, no description found: drawn like a related egg (Rusty-browed Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Plumbeous Seedeater
Sporophila plumbea
- 18 × 12 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
show all 9
South America: Bolivia, Brazil, Colombia, French Guiana, Guyana, Paraguay, Peru, Suriname, VenezuelaNo documented description found yet; drawn like the Wing-barred Seedeater egg (same genus).
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 263.
- Description
- Estimated, no description found: drawn like a related egg (Wing-barred Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Plumbeous Sierra Finch
Geospizopsis unicolor
- 21.5 × 15.8 mm
- Clutch: 2–3 eggs
Bluish, with brown spots concentrated towards the large end.
Sources of information
- Size
- Average of 26 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 58.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Plushcap
Catamblyrhynchus diadema
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Puerto Rican Bullfinch
Melopyrrha portoricensis
- 20.1 × 15.4 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Greater Antillean Bullfinch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Melopyrrha nigra, Melopyrrha violacea.
- Description
- Estimated, no description found: drawn like a related egg (Greater Antillean Bullfinch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Puerto Rican Spindalis
Spindalis portoricensis
- 22 × 16 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Western Spindalis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Spindalis dominicensis, Spindalis nigricephala, Spindalis zena.
- Description
- Estimated, no description found: drawn like a related egg (Western Spindalis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Puerto Rican Tanager
Nesospingus speculiferus
- 26 × 18.5 mm (approx.)
White with a bluish tinge; brown and black spots at the blunt end, scattering towards the middle and giving a brownish look, plus a few black dots and short streaks.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 307.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 245.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Puna Yellow Finch
Sicalis lutea
- 21.9 × 15.8 mm
- Clutch: 3–5 eggs
White (faintly greenish), unmarked.
Sources of information
- Size
- Average of 34 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 13.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 13. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Purple Honeycreeper
Cyanerpes caeruleus
- 16.4 × 12.2 mm
- Clutch: 2 eggs
show all 11
Central America: PanamaThe Caribbean: Trinidad and Tobago
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Purplish-buff, almost covered with dense blackish-brown blotches.
Sources of information
- Size
- Average of 10 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 319.
- Description
- Wikipedia, Purple honeycreeper (citing Gutierrez, Richart & Burns 2020, Birds of the World).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Purplish-mantled Tanager
Iridosornis porphyrocephalus
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Raimondi's Yellow Finch
Sicalis raimondii
- 18.4 × 13.4 mm
White with a greenish tinge (or yellowish white), sparingly marked all over with small brown spots and pale grey-violet underlying spots, sometimes with dark brown hair-lines and scrawls at the larger end.
Sources of information
- Size
- Average of 12 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 258.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 159.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Red Pileated Finch
Coryphospingus cucullatus
- 19.26 × 14.03 mm
- Clutch: 2–3 eggs
Unmarked white.
Sources of information
- Size
- Average of 8 eggs: Zoologia (Curitiba) 33(4), 2016: breeding biology of Coryphospingus cucullatus.
- Description
- Wikipedia, Red pileated finch (citing Jaramillo 2020, Birds of the World); secondary: Zoologia (Curitiba) 33(4), 2016: breeding biology of Coryphospingus cucullatus, Sorocaba, SP, Brazil; secondary: de la Pena 1980, Hornero 12: 72-74.
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 106. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Red-backed Sierra Finch
Idiopsar dorsalis
- 26.4 × 17.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Glacier Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Idiopsar speculifer.
- Description
- Estimated, no description found: drawn like a related egg (Glacier Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Red-billed Pied Tanager
Lamprospiza melanoleuca
- 27.2 × 16.8 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Dusky-faced Tanager egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Mitrospingus cassinii.
- Description
- Estimated, no description found: drawn like a related egg (Dusky-faced Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Red-capped Cardinal
Paroaria gularis
- 22.4 × 17 mm (approx.)
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaGreenish white, marked mainly round the blunt end with brown, dark brown and lilac-grey spots and dots; nearly lustreless, short oval.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 276.
- Description
- Penard, F. P. & A. P. Penard 1910. De vogels van Guyana (Suriname, Cayenne en Demerara), deel 2. Paramaribo., p. 406.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Red-cowled Cardinal
Paroaria dominicana
- 22.9 × 16.4 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Red-capped Cardinal egg (same genus).
Sources of information
- Size
- Average of 14 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Estimated, no description found: drawn like a related egg (Red-capped Cardinal).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Red-crested Cardinal
Paroaria coronata
- 23.8 × 16.8 mm
Pale green, covered with dark brown and lavender-grey spots, mottling and streaks (like Diuca Finch); glossy.
Sources of information
- Size
- Average of 36 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Red-legged Honeycreeper
Cyanerpes cyaneus
- 19.1 × 13.5 mm
- Clutch: 2 eggs
show all 19
Mexico: MexicoCentral America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago, Caribbean islands
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
White, little gloss, speckled with bright brown, heavily in a wreath about the large end (Central American carneipes).
Sources of information
- Size
- Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 395.
Agrees with: Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 515; Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 272. - Description
- Skutch, A. F. 1954. Life Histories of Central American Birds. Pacific Coast Avifauna 31.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Red-necked Tanager
Tangara cyanocephala
- 27.5 × 19 mm (approx.)
Reddish grey, very densely and evenly covered all over with pipit-like red-brown spots.
Sources of information
- Size
- Nehrkorn, A. 1899. Katalog der Eiersammlung nebst Beschreibungen der aussereuropäischen Eier. Braunschweig.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Red-shouldered Tanager
Tachyphonus phoenicius
- 20.1 × 15.6 mm
Greyish white with scattered chocolate-brown spots and blotches, the blunt end entirely chocolate brown.
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 310.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 249.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Ringed Warbling Finch
Microspingus torquatus
- 17.2 × 13.3 mm
- Clutch: 2–3 eggs
Whitish tinged pale blue, with a few black and brown spots at the large end.
Sources of information
- Size
- Average of 7 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 222.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 223. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Rosy Thrush-tanager
Rhodinocichla rosea
- 25 × 18.9 mm
White, with either a few blackish spots scattered everywhere except the tip, or a wreath of blackish scrawls and spots round the blunt end.
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 308.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 247.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Ruby-crowned Tanager
Tachyphonus coronatus
- 23.6 × 17.5 mm
Pale salmon pink, slightly glossy, spotted, blotched and smeared with reddish brown and chocolate, with a few scrawls and black streaks.
Sources of information
- Size
- Average of 36 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 310.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Ruddy-breasted Seedeater
Sporophila minuta
- 16.25 × 12.42 mm
- Clutch: 2 eggs
show all 15
Mexico: MexicoCentral America: Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago
South America: Brazil, Colombia, Ecuador, French Guiana, Guyana, Suriname, Venezuela
White, greyish or pinkish white, spotted with warm light and dark brown, reddish and purplish brown.
Sources of information
- Size
- Average of 50 eggs: Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 269.
- Description
- Hellebrekers 1942 (Zool. Meded. 24).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Rufous-backed Inca Finch
Incaspiza personata
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
Pale greenish blue, spotted and blotched with dull reddish brown and lilac, often in a zone or cap at the large end; glossless.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-bellied Mountain Tanager
Pseudosaltator rufiventris
- 29.1 × 20.6 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Blue-grey Tanager egg (same family).
Sources of information
- Size
- Average of 3 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 277.
- Description
- Estimated, no description found: drawn like a related egg (Blue-grey Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Rufous-breasted Warbling Finch
Poospiza rubecula
- 19 × 14.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-and-chestnut Warbling Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Poospiza baeri, Poospiza hispaniolensis, Poospiza nigrorufa, Poospiza ornata, Poospiza whitii.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-chestnut Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-browed Conebill
Conirostrum rufum
- 17.8 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Bicolored Conebill egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conirostrum cinereum, Conirostrum ferrugineiventre, Conirostrum sitticolor, Conirostrum speciosum.
- Description
- Estimated, no description found: drawn like a related egg (Bicolored Conebill).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-browed Hemispingus
Poospiza rufosuperciliaris
- 19 × 14.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-and-chestnut Warbling Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Poospiza baeri, Poospiza hispaniolensis, Poospiza nigrorufa, Poospiza ornata, Poospiza whitii.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-chestnut Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-cheeked Tanager
Tangara rufigenis
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-chested Tanager
Thlypopsis ornata
- 19.5 × 14.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut-headed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Thlypopsis pyrrhocoma, Thlypopsis ruficeps, Thlypopsis sordida.
- Description
- Estimated, no description found: drawn like a related egg (Chestnut-headed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-crested Tanager
Creurgops verticalis
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-headed Tanager
Hemithraupis ruficapilla
- 18 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Guira Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Hemithraupis guira.
- Description
- Estimated, no description found: drawn like a related egg (Guira Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-rumped Seedeater
Sporophila hypochroma
- 16.2 × 11.7 mm (approx.)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Ruddy-breasted Seedeater egg (same genus).
Sources of information
- Size
- de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 133.
- Description
- Estimated, no description found: drawn like a related egg (Ruddy-breasted Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-sided Warbling Finch
Poospizopsis hypocondria
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-throated Tanager
Ixothraupis rufigula
- 21.6 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Speckled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Ixothraupis guttata.
- Description
- Estimated, no description found: drawn like a related egg (Speckled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rufous-winged Tanager
Tangara lavinia
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Rust-and-yellow Tanager
Thlypopsis ruficeps
- 19.8 × 13.8 mm
Cream to whitish, spotted with chestnut and brown and a few short lines all over.
Sources of information
- Size
- Average of 2 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 215.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 215. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Rusty Flowerpiercer
Diglossa sittoides
- 17.6 × 13 mm
Grey to bluish grey, very densely covered with ill-defined dark grey spots that gather at the blunt end.
Sources of information
- Size
- Average of 12 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 320.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung); supporting: Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Rusty-browed Warbling Finch
Microspingus erythrophrys
- 19.3 × 15 mm
- Clutch: 3 eggs
Pale greenish blue, with a few small black spots at the large end.
Sources of information
- Size
- Average of 3 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 217.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 217. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Rusty-collared Seedeater
Sporophila collaris
- 18.4 × 13 mm
- Clutch: 2–3 eggs
Pale bluish green, with sparse well-defined blackish-brown and grey spots.
Sources of information
- Size
- Average of 48 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 151.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 151. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Saffron Finch
Sicalis flaveola
- 19.4 × 14.2 mm
show all 17
Central America: PanamaThe Caribbean: Aruba, Bonaire, Sint Eustatius and Saba, Curaçao, Trinidad and Tobago, Caribbean islands
South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Uruguay, Venezuela
Cream, heavily streaked and mottled with brown and greyish brown (another type pale green, sparsely marked); nearly glossless.
Sources of information
- Size
- Average of 76 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 257.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Saffron-crowned Tanager
Tangara xanthocephala
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Santa Marta Mountain Tanager
Anisognathus melanogenys
- 21.9 × 16.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scarlet-bellied Mountain Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Anisognathus igniventris, Anisognathus somptuosus.
- Description
- Estimated, no description found: drawn like a related egg (Scarlet-bellied Mountain Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Sayaca Tanager
Thraupis sayaca
- 24.2 × 16.6 mm
White to greenish white, spotted and streaked with purplish grey and dark purplish brown chiefly at the larger end (very variable).
Sources of information
- Size
- Average of 44 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 312.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 297. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Scaled Flowerpiercer
Diglossa duidae
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Scarlet-and-white Tanager
Chrysothlypis salmoni
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Scarlet-bellied Mountain Tanager
Anisognathus igniventris
- 20.8 × 16.5 mm (approx.)
Pale greenish white, finely and densely mottled, heavier at the larger end, with small reddish-brown and violet-grey spots.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 314.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Scarlet-breasted Dacnis
Dacnis berlepschi
- 17 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Estimated, no description found: drawn like a related egg (Blue Dacnis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Scarlet-browed Tanager
Heterospingus xanthopygius
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Scarlet-rumped Tanager
Ramphocelus passerinii
- 23.5 × 16.6 mm
- Clutch: 2 eggs
Very pale greyish blue with small irregular black or brown spots and fine lines, mainly at the larger end.
Sources of information
- Size
- Average of 10 eggs: Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 446.
Agrees with: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 163. - Description
- Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panamá, Part 4 (Smithsonian Misc. Coll. 150).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Scarlet-thighed Dacnis
Dacnis venusta
- 17 × 13 mm (estimated)
- Speculative: we haven't found a description of this egg (a source we checked reports it as undescribed), so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Wikipedia, Scarlet-thighed dacnis (citing Obando et al. 2020, Birds of the World): clutch size not known (says the egg has not been described).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Scarlet-throated Tanager
Compsothraupis loricata
- 29 × 21 mm (approx.)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Blue-grey Tanager egg (same family).
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 307.
- Description
- Estimated, no description found: drawn like a related egg (Blue-grey Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Scrub Tanager
Stilpnia vitriolina
- 21.8 × 15.7 mm (approx.)
Creamy white, not glossy, thickly mottled and blotched with brown and lilac grey forming a broad irregular zone round the broad end.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Serra Finch
Embernagra longicauda
- 24.6 × 18.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Pampa Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Embernagra platensis.
- Description
- Estimated, no description found: drawn like a related egg (Pampa Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Seven-colored Tanager
Tangara fastuosa
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Sharp-beaked Ground Finch
Geospiza difficilis
- 18 × 14 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Average of 12 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 268.
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
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Shining Honeycreeper
Cyanerpes lucidus
- 17.8 × 12.8 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Red-legged Honeycreeper egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Cyanerpes caeruleus, Cyanerpes cyaneus.
- Description
- Estimated, no description found: drawn like a related egg (Red-legged Honeycreeper).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Short-billed Honeycreeper
Cyanerpes nitidus
- 17.8 × 12.8 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Red-legged Honeycreeper egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Cyanerpes caeruleus, Cyanerpes cyaneus.
- Description
- Estimated, no description found: drawn like a related egg (Red-legged Honeycreeper).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Shrike-like Tanager
Neothraupis fasciata
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Silver-backed Tanager
Stilpnia viridicollis
- 21.1 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scrub Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Stilpnia cayana, Stilpnia cucullata, Stilpnia cyanoptera, Stilpnia heinei, Stilpnia larvata ….
- Description
- Estimated, no description found: drawn like a related egg (Scrub Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Silver-beaked Tanager
Ramphocelus carbo
- 19.3 × 17 mm
show all 11
The Caribbean: Trinidad and TobagoSouth America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela
Pale blue, sparingly spotted with black over grey underlying marks (same type as other Ramphocelus); slightly glossy.
Sources of information
- Size
- Average of 313 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pp. 312, 313.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Silver-throated Tanager
Tangara icterocephala
- 21.3 × 15.6 mm
- Clutch: 2 eggs
Dull white or greyish, rather heavily mottled all over with brown, most concentrated on the thicker end.
Sources of information
- Size
- Average of 8 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 230.
- Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31), pp. 226-234; supporting: Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panama, part 4.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Sira Tanager
Stilpnia phillipsi
- 21.1 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scrub Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Stilpnia cayana, Stilpnia cucullata, Stilpnia cyanoptera, Stilpnia heinei, Stilpnia larvata ….
- Description
- Estimated, no description found: drawn like a related egg (Scrub Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Slate-colored Grosbeak
Saltator grossus
- 23.7 × 18.5 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
show all 13
Central America: Costa Rica, Honduras, Nicaragua, PanamaSouth America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
No documented description found yet; drawn like the Streaked Saltator egg (same genus).
Sources of information
- Size
- Average of 7 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Estimated, no description found: drawn like a related egg (Streaked Saltator).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Slate-colored Seedeater
Sporophila schistacea
- 16.6 × 12.2 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
show all 14
Central America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, PanamaSouth America: Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, Venezuela
No documented description found yet; drawn like the Chestnut-throated Seedeater egg (same genus).
Sources of information
- Size
- Average of 20 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 258.
- Description
- Estimated, no description found: drawn like a related egg (Chestnut-throated Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Slaty Finch
Haplospiza rustica
- 19.9 × 14.6 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
show all 12
Mexico: MexicoCentral America: Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
South America: Bolivia, Colombia, Ecuador, Peru, Venezuela
No documented description found yet; drawn like the Uniform Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Haplospiza unicolor.
- Description
- Estimated, no description found: drawn like a related egg (Uniform Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Slaty Flowerpiercer
Diglossa plumbea
- 17.1 × 12.7 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the White-sided Flowerpiercer egg (same genus).
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 320.
- Description
- Estimated, no description found: drawn like a related egg (White-sided Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Slaty Tanager
Creurgops dentatus
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Slaty-backed Hemispingus
Poospiza goeringi
- 19 × 14.9 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-and-chestnut Warbling Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Poospiza baeri, Poospiza hispaniolensis, Poospiza nigrorufa, Poospiza ornata, Poospiza whitii.
- Description
- Estimated, no description found: drawn like a related egg (Black-and-chestnut Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Slender-billed Finch
Xenospingus concolor
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Small Ground Finch
Geospiza fuliginosa
- 18.5 × 14.3 mm
- Clutch: 3 eggs
Buff to cream, spotted and blotched with chocolate to chestnut all over.
Sources of information
- Size
- Average of 37 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 268.
- Description
- Hauber, M. E. (ed.) 2014. The Book of Eggs. University of Chicago Press (photo and text), p. 575.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Small Tree Finch
Camarhynchus parvulus
- 19 × 14 mm
- Clutch: 3–4 eggs
Whitish with darker spots.
Sources of information
- Size
- Average of 12 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 269.
- Description
- oiseaux-birds.com species card (paraphrasing del Hoyo et al., HBW vol. 16).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Sooty Grassquit
Asemospiza fuliginosa
- 16.9 × 13 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
- Clutch: 2–3 eggs
White with brown markings.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Asemospiza obscura.
- Description
- Wikipedia 'Sooty grassquit', citing Rising & Jaramillo 2020 (Birds of the World) and Hilty 2003 Birds of Venezuela p. 795.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Spangle-cheeked Tanager
Tangara dowii
- 20.6 × 15.2 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Beryl-spangled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tangara arthus, Tangara chilensis, Tangara cyanocephala, Tangara desmaresti, Tangara gyrola ….
- Description
- Estimated, no description found: drawn like a related egg (Beryl-spangled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Speckled Tanager
Ixothraupis guttata
- 21.6 × 15.3 mm
show all 9
Central America: Costa Rica, PanamaThe Caribbean: Trinidad and Tobago
South America: Brazil, Colombia, Ecuador, Guyana, Suriname, Venezuela
Whitish, very variable: densely spotted grey-brown like a pipit's egg, or with thick grey-brown blotches.
Sources of information
- Size
- Average of 5 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 318.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Spotted Tanager
Ixothraupis punctata
- 21.6 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaNo documented description found yet; drawn like the Speckled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Ixothraupis guttata.
- Description
- Estimated, no description found: drawn like a related egg (Speckled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
St. Lucia Black Finch
Melanospiza richardsoni
- 16.7 × 12.8 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Black-faced Grassquit egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Melanospiza bicolor.
- Description
- Estimated, no description found: drawn like a related egg (Black-faced Grassquit).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Straw-backed Tanager
Stilpnia argyrofenges
- 21.1 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Scrub Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Stilpnia cayana, Stilpnia cucullata, Stilpnia cyanoptera, Stilpnia heinei, Stilpnia larvata ….
- Description
- Estimated, no description found: drawn like a related egg (Scrub Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Streak-crowned Mountain Tanager
Dubusia stictocephala
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Streaked Saltator
Saltator striatipectus
- 25.7 × 17.9 mm
- Clutch: 2 eggs
Clear light blue with a wreath of few or many black spots or fine scrawls around the large end.
Sources of information
- Size
- Average of 11 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 84.
- Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31), pp. 80-87; supporting: Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panama, part 4.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Stripe-tailed Yellow Finch
Sicalis citrina
- 18.4 × 13.7 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Raimondi's Yellow Finch egg (same genus).
Sources of information
- Size
- Average of 10 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 257.
- Description
- Estimated, no description found: drawn like a related egg (Raimondi's Yellow Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Sulphur-rumped Tanager
Heterospingus rubrifrons
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Sulphur-throated Finch
Sicalis taczanowskii
- 19.9 × 14.6 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Saffron Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sicalis auriventris, Sicalis citrina, Sicalis columbiana, Sicalis flaveola, Sicalis lebruni ….
- Description
- Estimated, no description found: drawn like a related egg (Saffron Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Superciliaried Hemispingus
Thlypopsis superciliaris
- 19.5 × 14.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut-headed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Thlypopsis pyrrhocoma, Thlypopsis ruficeps, Thlypopsis sordida.
- Description
- Estimated, no description found: drawn like a related egg (Chestnut-headed Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Swallow Tanager
Tersina viridis
- 21.5 × 15 mm
- Clutch: 3 eggs
show all 13
Central America: PanamaThe Caribbean: Trinidad and Tobago
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela
Porcelain white, unmarked.
Sources of information
- Size
- Schaefer 1953 (Auk 70), quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 391.
- Description
- Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panama, part 4.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Tamarugo Conebill
Conirostrum tamarugense
- 17.8 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Bicolored Conebill egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conirostrum cinereum, Conirostrum ferrugineiventre, Conirostrum sitticolor, Conirostrum speciosum.
- Description
- Estimated, no description found: drawn like a related egg (Bicolored Conebill).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Tawny-bellied Seedeater
Sporophila hypoxantha
- 16.3 × 12.2 mm
- Clutch: 2–3 eggs
Whitish, spotted brown, grey and chestnut.
Sources of information
- Size
- Average of 192 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 123.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 123. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Tawny-crested Tanager
Tachyphonus delatrii
- 23.6 × 17.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Ruby-crowned Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Tachyphonus coronatus, Tachyphonus phoenicius, Tachyphonus rufus, Tachyphonus surinamus.
- Description
- Estimated, no description found: drawn like a related egg (Ruby-crowned Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Temminck's Seedeater
Sporophila falcirostris
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Thick-billed Saltator
Saltator maxillosus
- 26.5 × 19 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Lesser Antillean Saltator egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Saltator albicollis, Saltator atriceps, Saltator atripennis, Saltator aurantiirostris, Saltator coerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Lesser Antillean Saltator).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Thick-billed Seed Finch
Sporophila funerea
- 19 × 13.8 mm
show all 9
Mexico: MexicoCentral America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
South America: Colombia, Ecuador
Greenish white, thickly marked with reddish brown over purplish grey as small blotches, dots and fine streaks; somewhat glossy.
Sources of information
- Size
- Average of 7 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 266.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
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Three-striped Hemispingus
Microspingus trifasciatus
- 19.1 × 14.4 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Rusty-browed Warbling Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Microspingus cabanisi, Microspingus cinereus, Microspingus erythrophrys, Microspingus lateralis, Microspingus melanoleucus ….
- Description
- Estimated, no description found: drawn like a related egg (Rusty-browed Warbling Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Tit-like Dacnis
Xenodacnis parina
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Tropeiro Seedeater
Sporophila beltoni
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Tucuman Mountain Finch
Poospiza baeri
- 20.9 × 15.7 mm
- Clutch: 3 eggs
Whitish, with brown and olive-brown dots and small blotches.
Sources of information
- Size
- Average of 3 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 207.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Turquoise Dacnis
Dacnis hartlaubi
- 17 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Estimated, no description found: drawn like a related egg (Blue Dacnis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Turquoise Tanager
Tangara mexicana
- 20 × 14.6 mm
show all 10
The Caribbean: Trinidad and TobagoSouth America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
White to greyish green, speckled with dark brown and light grey, densest and coarsest (blackish brown) in a crown at the blunt end.
Sources of information
- Size
- Average of 20 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 317.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 259.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Uniform Finch
Haplospiza unicolor
- 19.9 × 14.6 mm
Pure white, unmarked, somewhat glossy; pyriform.
Sources of information
- Size
- Average of 9 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 255.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Vampire Ground Finch
Geospiza septentrionalis
- 19.9 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Small Ground Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Geospiza acutirostris, Geospiza conirostris, Geospiza difficilis, Geospiza fortis, Geospiza fuliginosa ….
- Description
- Estimated, no description found: drawn like a related egg (Small Ground Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Variable Seedeater
Sporophila corvina
- 17.4 × 13 mm
- Clutch: 2 eggs
show all 10
Mexico: MexicoCentral America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
South America: Colombia, Ecuador, Peru
Pale grey or blue-grey, finely speckled or blotched with cinnamon to dark brown, with some black spots and scrawls, crowded at the thick end.
Sources of information
- Size
- Average of 23 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 23.
Agrees with: Huber, W. 1932. Proc. Acad. Nat. Sci. Philadelphia 84: 241–242, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 568. - Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Vegetarian Finch
Platyspiza crassirostris
- 24 × 18 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Blue-grey Tanager egg (same family).
Sources of information
- Size
- Average of 6 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 269.
- Description
- Estimated, no description found: drawn like a related egg (Blue-grey Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
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Venezuelan Flowerpiercer
Diglossa venezuelensis
- 17.5 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Merida Flowerpiercer egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Diglossa albilatera, Diglossa baritula, Diglossa caerulescens, Diglossa cyanea, Diglossa gloriosa ….
- Description
- Estimated, no description found: drawn like a related egg (Merida Flowerpiercer).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Vermilion Tanager
Calochaetes coccineus
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Viridian Dacnis
Dacnis viguieri
- 17 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Estimated, no description found: drawn like a related egg (Blue Dacnis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Wedge-tailed Grass Finch
Emberizoides herbicola
- 22.83 × 16.96 mm
- Clutch: 2 eggs
show all 14
Central America: Costa Rica, PanamaSouth America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela
White, very sparingly marked with small blackish spots at the large end; moderately glossy.
Sources of information
- Size
- Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 270.
- Description
- Hellebrekers 1942, Zoologische Mededelingen 24 (Penard egg collection, Suriname).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Western Chat-Tanager
Calyptophilus tertius
- 23.5 × 18 mm (approx.)
White with brown and purplish-grey spots covering almost the whole blunt end as a cap, sometimes a few blackish scrawls.
Sources of information
- Size
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 308.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 247.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Western Spindalis
Spindalis zena
- 22 × 16 mm
White to greyish white or pale bluish green, finely dotted with grey and brown, often more heavily marked (sometimes with black scrawls) round the larger end.
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 313.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 251.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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White-bellied Dacnis
Dacnis albiventris
- 17 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Estimated, no description found: drawn like a related egg (Blue Dacnis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-bellied Seedeater
Sporophila leucoptera
- 18 × 12 mm
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings from related birds.
No documented description found yet; drawn like the Wing-barred Seedeater egg (same genus).
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 264.
- Description
- Estimated, no description found: drawn like a related egg (Wing-barred Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-bridled Finch
Melanodera melanodera
- 22.2 × 16 mm
Pale green, dotted and spotted all over with deep chestnut, so densely at the blunt end that the ground is often almost hidden.
Sources of information
- Size
- Average of 19 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 254.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 155.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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White-browed Conebill
Conirostrum ferrugineiventre
- 17.3 × 12.4 mm
Pale blue or greenish white, sparsely dotted all over with small sharp black dots and tiny rod-like specks and scrawls, sometimes merging into light sepia and dark slate spots in a wreath round one end; little gloss.
Sources of information
- Size
- Average of 4 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 351.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 304.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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White-capped Tanager
Sericossypha albocristata
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-eared Conebill
Conirostrum leucogenys
- 17.8 × 12.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Bicolored Conebill egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Conirostrum cinereum, Conirostrum ferrugineiventre, Conirostrum sitticolor, Conirostrum speciosum.
- Description
- Estimated, no description found: drawn like a related egg (Bicolored Conebill).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-lined Tanager
Tachyphonus rufus
- 23.83 × 17.87 mm
- Clutch: 1–4 eggs
show all 14
Central America: Costa Rica, PanamaThe Caribbean: Trinidad and Tobago
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela
Cream to greyish cream with a few large irregular blackish-brown blotches, scattered small dots and hair-lines, few grey undermarks.
Sources of information
- Size
- Average of 50 eggs: Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 272.
- Description
- Hauber et al. 2014, The Book of Eggs, p. 570; supporting: Hellebrekers 1942, Zoologische Mededelingen 24 (Penard egg collection, Suriname); supporting: Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panama, part 4.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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White-naped Seedeater
Sporophila fringilloides
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-rumped Tanager
Cypsnagra hirundinacea
- 22.8 × 16.4 mm
- Clutch: 3–4 eggs
Blue, speckled around the large end with brown or black spots.
Sources of information
- Size
- Average of 7 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 307.
- Description
- Wikipedia, White-rumped tanager (paragraph uncited).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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White-shouldered Tanager
Loriotus luctuosus
- 19.1 × 15.8 mm
- Clutch: 3 eggs
show all 14
Central America: Costa Rica, Honduras, Nicaragua, PanamaThe Caribbean: Trinidad and Tobago
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Pale creamy white with a few specks, spots, streaks and an occasional blotch of blackish brown and faint grey undermarks (one set rich buff with reddish-brown spots at large end).
Sources of information
- Size
- Belcher, C. & G. D. Smooker 1937, Ibis, pp. 538–539, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 471.
- Description
- Wetmore, Pasquier & Olson 1984, The Birds of the Republic of Panama, part 4.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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White-sided Flowerpiercer
Diglossa albilatera
- 17.3 × 12.7 mm (approx.)
Pale blue to bluish grey, thickly spotted and blotched with dull reddish brown and lilac grey, confluent toward the large end; glossless.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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White-throated Seedeater
Sporophila albogularis
- 17.4 × 12.5 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Chestnut Seedeater egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Sporophila americana, Sporophila angolensis, Sporophila bouvreuil, Sporophila bouvronides, Sporophila caerulescens ….
- Description
- Estimated, no description found: drawn like a related egg (Chestnut Seedeater).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-throated Shrike-Tanager
Lanio leucothorax
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
White with chocolate-brown and grey-brown spots, mainly at the blunt end; slight gloss; almost elliptical.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 247.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-throated Sierra Finch
Idiopsar erythronotus
- 26.4 × 17.7 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Glacier Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Idiopsar speculifer.
- Description
- Estimated, no description found: drawn like a related egg (Glacier Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-winged Shrike-Tanager
Lanio versicolor
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the White-throated Shrike-Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (White-throated Shrike-Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
White-winged Warbler
Xenoligea montana
- 21.7 × 15.5 mm
Creamy white, unmarked.
Sources of information
- Size
- Average of 2 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 350.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., pdf p. 304.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Wing-barred Seedeater
Sporophila americana
- 18.16 × 13.57 mm (approx.)
show all 9
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, VenezuelaGreyish to greenish/bluish grey, rather boldly blotched and spotted brown, sienna and blackish, purplish undermarks, sometimes a cap.
Sources of information
- Size
- Average of 50 eggs: Hellebrekers, W. P. J. 1942. Revision of the Penard oölogical collection from Surinam. Zoologische Mededelingen 24: 240–275., p. 269.
- Description
- Hellebrekers 1942, Zool. Meded. 24, p. 268–269.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Woodpecker Finch
Camarhynchus pallidus
- 19 × 14 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
- Clutch: 2–4 eggs
Whitish with darker spots.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Camarhynchus parvulus.
- Description
- oiseaux-birds.com species card (paraphrasing del Hoyo et al., HBW vol. 16).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Make a 3D-printable copy of this eggSee posters with this egg →
Yellow Cardinal
Gubernatrix cristata
- 23.9 × 18.1 mm
Pale greenish blue, with sharp black spots, small blotches and short lines all over; glossy.
Sources of information
- Size
- Average of 15 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 275.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5); supporting: Nehrkorn 1899 (Katalog der Eiersammlung).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 256. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Yellow-backed Tanager
Hemithraupis flavicollis
- 18 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
show all 10
Central America: PanamaSouth America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
No documented description found yet; drawn like the Guira Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Hemithraupis guira.
- Description
- Estimated, no description found: drawn like a related egg (Guira Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Yellow-bellied Dacnis
Dacnis flaviventer
- 17 × 13 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Blue Dacnis egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Dacnis cayana.
- Description
- Estimated, no description found: drawn like a related egg (Blue Dacnis).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Yellow-bellied Seedeater
Sporophila nigricollis
- 16.9 × 12.4 mm
show all 14
Central America: Costa Rica, Nicaragua, PanamaThe Caribbean: Trinidad and Tobago, Caribbean islands
South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela
Grey to reddish white with fine and larger grey and brownish dots, now and then a few deep black streaks and dots.
Sources of information
- Size
- Average of 48 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 264.
- Description
- Nehrkorn 1899 (Katalog der Eiersammlung).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Know something more about this egg, or spotted a mistake? Message us.
Yellow-bellied Tanager
Ixothraupis xanthogastra
- 21.6 × 15.3 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Speckled Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Ixothraupis guttata.
- Description
- Estimated, no description found: drawn like a related egg (Speckled Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Yellow-billed Cardinal
Paroaria capitata
- 21 × 15.1 mm
- Clutch: 3–4 eggs
Pale buff to greenish, densely mottled and speckled all over with brown and grey.
Sources of information
- Size
- Average of 30 eggs: de la Peña, M. R. 2025. Aves Argentinas: descripción, comportamiento, reproducción y distribución. Comunicaciones del Museo Provincial de Ciencias Naturales "Florentino Ameghino" (Nueva Serie). Santa Fe., tomo 12, p. 268.
- Description
- de la Peña 2025 (Aves Argentinas tomo 12).
Drawing checked against a photo: de la Peña 2025, Aves Argentinas tomo 12, p. 268. - Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Yellow-bridled Finch
Melanodera xanthogramma
- 22.2 × 16 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the White-bridled Finch egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Melanodera melanodera.
- Description
- Estimated, no description found: drawn like a related egg (White-bridled Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Yellow-crested Tanager
Loriotus rufiventer
- 20.8 × 16.4 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Flame-crested Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Loriotus cristatus, Loriotus luctuosus.
- Description
- Estimated, no description found: drawn like a related egg (Flame-crested Tanager).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Yellow-faced Grassquit
Tiaris olivaceus
- 16.8 × 12.8 mm
- Clutch: 2–3 eggs
show all 12
Mexico: MexicoCentral America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Caribbean islands
South America: Colombia, Ecuador, Venezuela
Dull white, speckled with brown and chocolate, thickly at the large end.
Sources of information
- Size
- Average of 10 eggs: Skutch, A. F. 1954. Life histories of Central American birds. Pacific Coast Avifauna 31., p. 43.
Agrees with: Skutch 1954, quoted in Wetmore, A., R. F. Pasquier & S. L. Olson 1984. The birds of the Republic of Panamá, part 4. Smithsonian Miscellaneous Collections 150(4)., p. 562. - Description
- Skutch 1954, Life Histories of Central American Birds (Pacific Coast Avifauna 31).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Yellow-green Tanager
Bangsia flavovirens
- 26.5 × 18.2 mm (estimated)
- Speculative: we haven't found a description of this egg (a source we checked reports it as undescribed), so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Moss-backed Tanager egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Bangsia edwardsi.
- Description
- Robbins & Glenn 1988, Condor 90: 947-948 (eggs unknown for all members of the Bangsia/Buthraupis complex other than edwardsi; species not named individually) (says the egg has not been described).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Yellow-scarfed Tanager
Iridosornis reinhardti
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Yellow-shouldered Grassquit
Loxipasser anoxanthus
- 18.7 × 13.7 mm (approx.)
White, speckled and blotched with pale reddish brown and grey, thickest on the broader half; glossless.
Sources of information
- Size
- Ogilvie-Grant, W. R. 1912. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 5. London.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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Yellow-shouldered Grosbeak
Parkerthraustes humeralis
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Yellow-throated Tanager
Iridosornis analis
- 20.5 × 15 mm (estimated)
- Speculative: we haven't found a documented description of this egg yet, so we estimated its colours and markings and its size from related birds.
No documented description found yet; drawn like the Band-tailed Sierra Finch egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Anisognathus igniventris, Anisognathus somptuosus, Asemospiza obscura, Bangsia edwardsi, Camarhynchus parvulus ….
- Description
- Estimated, no description found: drawn like a related egg (Band-tailed Sierra Finch).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Have you seen this egg, or know a description or measurements of it? Message us.
Yellow-winged Tanager
Thraupis abbas
- 23 × 16.7 mm
Dull greenish white, glossy, thickly marked especially at the broad end with confluent brown and lavender-grey spots and a few deep chocolate specks.
Sources of information
- Size
- Average of 5 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 29–36. Akademie-Verlag, Berlin., p. 313.
- Description
- Ogilvie-Grant 1912 (BM Egg Catalogue vol 5).
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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A description, measurements, a photo or a source (a book, paper, museum record or website) all help. We check every message and update the egg.