The eggs of 16 extinct birds in the collection. For many of them, eggs in museum collections are all that is left; their sizes come from those eggs, with the source given for each.
Atitlan GrebeExtinct
Podilymbus gigas
- 43.4 × 30 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 Pied-billed Grebe egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Podilymbus podiceps.
- Description
- Estimated, no description found: drawn like a related egg (Pied-billed Grebe).
- 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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Bachman's WarblerExtinct
Vermivora bachmanii
- 16 × 12 mm (approx.)
- Clutch: 3–5 eggs
White; some eggs with dark brown spotting at the blunt end.
Sources of information
- Size
- Hauber, M. E. (ed.), J. Bates & B. Becker 2014. The Book of Eggs: A Life-Size Guide to the Eggs of Six Hundred of the World's Bird Species. University of Chicago Press., p. 528.
- Description
- Hauber, M.E. (ed.) 2014. The Book of Eggs. University of Chicago Press, p. 528.
- 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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Carolina ParakeetExtinct
Conuropsis carolinensis
- 34.23 × 27.8 mm
White.
Sources of information
- Size
- Average of 24 eggs: Bent, Life Histories of North American Cuckoos, Goatsuckers, Hummingbirds and Their Allies (U.S. National Museum Bulletin 176, 1940), p. 7.
- Description
- Bendire, Life Histories of North American Birds, Vol. 2 (1895), p. 6.
- 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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Cozumel ThrasherExtinct
Toxostoma guttatum
- 27.6 × 19.6 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 Brown Thrasher egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Toxostoma bendirei, Toxostoma cinereum, Toxostoma crissale, Toxostoma curvirostre, Toxostoma lecontei ….
- Description
- Estimated, no description found: drawn like a related egg (Brown Thrasher).
- 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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Elephant BirdExtinct
Aepyornis maximus
- 340 × 245 mm
Cream to yellowish.
Sources of information
- Size
- SaviMade's original preset (a typical egg).
Agrees with: Wikipedia: Elephant bird (eggs 26–40 cm long, 19–25 cm wide). - Description
- SaviMade's description of a typical egg.
- 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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Eskimo CurlewExtinct
Numenius borealis
- 51.3 × 35.5 mm
Olive-buff to greenish, boldly spotted and blotched with dark brown over grey, somewhat heavier at the larger end (Whimbrel-like).
Sources of information
- Size
- Average of 36 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 7. Akademie-Verlag, Berlin., p. 406.
- 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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Great AukExtinct
Pinguinus impennis
- 124 × 76 mm
Yellowish white with brown and black blotches and scrawls.
Sources of information
- Size
- Average of 40 eggs: Bent, Life Histories of North American Diving Birds (U.S. National Museum Bulletin 107, 1919), p. 213.
Agrees with: Wikipedia: Great auk (average 12.4 × 7.6 cm). - Description
- Wikipedia: Great auk.
- 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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Guadalupe Storm PetrelExtinct
Hydrobates macrodactylus
- 35.6 × 26.8 mm
White, much stained, with a zone of pink specks round the thicker end.
Sources of information
- Size
- Average of 55 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 2. Akademie-Verlag, Berlin., p. 70.
- Description
- Oates 1901 (BM Egg Catalogue vol 1).
- 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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Imperial WoodpeckerExtinct
Campephilus imperialis
- 34 × 23.7 mm (estimated)
- Its colour follows its family (the eggs of all its relatives are alike); we haven't found a description of this species' own egg yet. Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
Plain white, as in all woodpecker eggs (we haven't found a description of this species' own egg yet).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Campephilus leucopogon, Campephilus magellanicus, Campephilus melanoleucos.
- Description
- Oates, E. W. & S. G. Reid 1903. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 3. London.
- 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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Ivory-billed WoodpeckerExtinct
Campephilus principalis
- 34 × 23.7 mm (estimated)
- Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
White with the highest porcelain gloss, elongated and more pointed than most woodpecker eggs.
Sources of information
- Size
- Nehrkorn, A. 1899. Katalog der Eiersammlung nebst Beschreibungen der aussereuropäischen Eier. Braunschweig.
- Description
- Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 12. Akademie-Verlag, Berlin., pdf p. 39.
- 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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Kinglet CalypturaExtinct
Calyptura cristata
- 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 Slaty-headed Tody-Flycatcher egg (same family).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same family: Agriornis lividus, Agriornis micropterus, Agriornis montanus, Agriornis murinus, Alectrurus risora ….
- Description
- Estimated, no description found: drawn like a related egg (Slaty-headed Tody-Flycatcher).
- 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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Labrador DuckExtinct
Camptorhynchus labradorius
- 60.7 × 42.5 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 Barrow's Goldeneye egg (same family).
Sources of information
- Size
- Average of 7 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 3. Akademie-Verlag, Berlin., p. 133.
- Description
- Estimated, no description found: drawn like a related egg (Barrow's Goldeneye).
- 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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Passenger PigeonExtinct
Ectopistes migratorius
- 38.2 × 27 mm
White, unmarked.
Sources of information
- Size
- Average of 32 eggs: Bent, Life Histories of North American Gallinaceous Birds (U.S. National Museum Bulletin 162, 1932), p. 386.
- Description
- Bent, Life Histories of North American Gallinaceous Birds (U.S. National Museum Bulletin 162, 1932), p. 386.
- 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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Rio de Janeiro AntwrenExtinct
Myrmotherula fluminensis
- 17.2 × 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 Slaty Antwren egg (same genus).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Myrmotherula axillaris, Myrmotherula menetriesii, Myrmotherula pacifica, Myrmotherula schisticolor, Myrmotherula surinamensis ….
- Description
- Estimated, no description found: drawn like a related egg (Slaty Antwren).
- 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-throated PufflegExtinct
Eriocnemis godini
- 13 × 8 mm (estimated)
- Its colour follows its family (the eggs of all its relatives are alike); we haven't found a description of this species' own egg yet. Speculative: we haven't found documented measurements of this egg yet, so we estimated its size from related birds.
Plain white, as in all hummingbird eggs (we haven't found a description of this species' own egg yet).
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Eriocnemis cupreoventris.
- Description
- Oates, E. W. & S. G. Reid 1903. Catalogue of the Collection of Birds' Eggs in the British Museum, vol. 3. London.
- 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.
Zapata RailExtinct
Mustelirallus cerverai
- 31.6 × 24.1 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.
White.
Sources of information
- Size
- Estimated, no measurements found: the median length and width of measured eggs of the same genus: Mustelirallus albicollis, Mustelirallus erythrops.
- Description
- Bond, J. et al. 2001 (as cited by Wikipedia), A Field Guide to Birds of the West Indies, p. 69 - 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).
Have you seen this egg, or know a description or measurements of it? Message us.
Tell us about this egg
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