Eggs of warblers

51 eggs at true relative size, from the 14.6 mm egg of the Lucy's Warbler to the 21.9 mm egg of the Yellow-breasted Chat.

About this collection. These eggs cover most of the birds that nest in Canada and the United States, plus a few famous eggs from elsewhere, like the Ostrich and the extinct Elephant Bird. It isn’t every bird in the world yet; we’ll update this note as the collection grows.

Make a poster of these 51 eggs

Yellow-breasted Chat egg, 21.9 × 16.9 mm — All 51 eggs at the same scale, largest first. Tap an egg to jump to it.

Ovenbird egg, 20.5 × 15 mm — All 51 eggs at the same scale, largest first. Tap an egg to jump to it.

American Redstart

Setophaga ruticilla

16.2 × 12.3 mm
Clutch: 1–5 eggs

White or creamy with blotches of brownish or reddish.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 663.
Description: Cornell Lab of Ornithology, All About Birds: American Redstart, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Bay-breasted Warbler

Setophaga castanea

17.7 × 12.9 mm
Clutch: 4–7 eggs

White or creamy with bold dark spots.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 383.
Description: Cornell Lab of Ornithology, All About Birds: Bay-breasted Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-and-white Warbler

Mniotilta varia

17.2 × 13.3 mm
Clutch: 4–6 eggs

Creamy white, pale bluish- or greenish-white, with speckles of brown or lavender.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 7.
Agrees with: Cornell Lab of Ornithology, All About Birds: Black-and-white Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Black-and-white Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-throated Blue Warbler

Setophaga caerulescens

16.9 × 12.8 mm
Clutch: 2–5 eggs

Creamy white with dark speckles concentrated at the large end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 190.
Agrees with: Cornell Lab of Ornithology, All About Birds: Black-throated Blue Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Black-throated Blue Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-throated Gray Warbler

Setophaga nigrescens

16.5 × 12.5 mm
Clutch: 3–5 eggs

Cream-colored with brownish speckles and dots.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 278.
Agrees with: Cornell Lab of Ornithology, All About Birds: Black-throated Gray Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Black-throated Gray Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-throated Green Warbler

Setophaga virens

17 × 12.7 mm
Clutch: 3–5 eggs

Whitish with variable brown blotches or speckles.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 296.
Agrees with: Cornell Lab of Ornithology, All About Birds: Black-throated Green Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Black-throated Green Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Blackburnian Warbler

Setophaga fusca

17.2 × 12.8 mm
Clutch: 3–5 eggs

White or greenish white with brown spots and blotches.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 341.
Agrees with: Cornell Lab of Ornithology, All About Birds: Blackburnian Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Blackburnian Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Blackpoll Warbler

Setophaga striata

17.9 × 13.4 mm
Clutch: 3–5 eggs

Whitish to pale green with brown and purplish blotches around the larger end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 396.
Agrees with: Cornell Lab of Ornithology, All About Birds: Blackpoll Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Blackpoll Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Blue-winged Warbler

Vermivora cyanoptera

16 × 12 mm
Clutch: 2–7 eggs

White with small spots of brown or gray near large end.

Sources of information

Size: Cornell Lab of Ornithology, All About Birds: Blue-winged Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Blue-winged Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Canada Warbler

Cardellina canadensis

17.2 × 13.1 mm
Clutch: 2–6 eggs

Creamy speckled with small brown dots and blotches.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 649.
Agrees with: Cornell Lab of Ornithology, All About Birds: Canada Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Canada Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Cape May Warbler

Setophaga tigrina

16.8 × 12.5 mm
Clutch: 4–9 eggs

White with reddish-brown blotches.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 217.
Agrees with: Cornell Lab of Ornithology, All About Birds: Cape May Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Cape May Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Ontario Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Cerulean Warbler

Setophaga cerulea

17 × 13 mm
Clutch: 1–5 eggs

Grayish to greenish white, speckled with brown.

Sources of information

Size: Cornell Lab of Ornithology, All About Birds: Cerulean Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Cerulean Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-sided Warbler

Setophaga pensylvanica

16.7 × 12.4 mm
Clutch: 3–5 eggs

Creamy white or greenish with brown speckles.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 371.
Agrees with: Cornell Lab of Ornithology, All About Birds: Chestnut-sided Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Chestnut-sided Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Colima Warbler

Leiothlypis crissalis

18.13 × 13.58 mm
Clutch: 3–4 eggs

Creamy white, with a band of light brownish markings at the wide end.

Sources of information

Size: Average of 4 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 127.
Description: Cornell Lab of Ornithology, All About Birds: Colima Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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 Yellowthroat

Geothlypis trichas

17.5 × 13.5 mm
Clutch: 1–6 eggs

White with markings of gray, lilac, reddish-brown, or black.

Sources of information

Size: Cornell Lab of Ornithology, All About Birds: Common Yellowthroat, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Common Yellowthroat, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Alberta Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Connecticut Warbler

Oporornis agilis

19.5 × 14.3 mm
Clutch: 3–5 eggs

Creamy white with dark speckles.

Sources of information

Size: Average of 39 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 517.
Agrees with: Cornell Lab of Ornithology, All About Birds: Connecticut Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Connecticut Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-cheeked Warbler

Setophaga chrysoparia

17.7 × 13.1 mm
Clutch: 3–5 eggs

White with dark speckles concentrated around the large end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 319.
Agrees with: Cornell Lab of Ornithology, All About Birds: Golden-cheeked Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Golden-cheeked Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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-winged Warbler

Vermivora chrysoptera

16.7 × 13 mm
Clutch: 3–6 eggs

Pale pink or pale cream, with fine streaks or small blotches.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 50.
Agrees with: Cornell Lab of Ornithology, All About Birds: Golden-winged Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Golden-winged Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Grace's Warbler

Setophaga graciae

16.9 × 12.7 mm

White to creamy white, finely spotted with reddish brown, mostly at the large end.

Sources of information

Size: Average of 38 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 365.
Description: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 365.
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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Hermit Warbler

Setophaga occidentalis

17 × 13.1 mm
Clutch: 4–5 eggs

Creamy white with fine dark speckles around large end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 324.
Description: Cornell Lab of Ornithology, All About Birds: Hermit Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Hooded Warbler

Setophaga citrina

17.6 × 13.6 mm
Clutch: 2–5 eggs

Cream-colored with scattered brown spots.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 616.
Agrees with: Cornell Lab of Ornithology, All About Birds: Hooded Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Hooded Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Kentucky Warbler

Geothlypis formosa

18.6 × 14.3 mm
Clutch: 3–6 eggs

Eggs gray to cream with brown blotches and/or dots concentrated at the large end, sometimes wreathed.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 506.
Agrees with: Cornell Lab of Ornithology, All About Birds: Kentucky Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Kentucky Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Kirtland's Warbler

Setophaga kirtlandii

18 × 13.5 mm
Clutch: 3–6 eggs

White or buff, with varying amounts of fine brown spots concentrated around large end.

Sources of information

Size: Cornell Lab of Ornithology, All About Birds: Kirtland's Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Kirtland's Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Louisiana Waterthrush

Parkesia motacilla

19.9 × 15.5 mm
Clutch: 2–6 eggs

Creamy white with reddish brown splotches, usually concentrated around larger end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 496.
Agrees with: Cornell Lab of Ornithology, All About Birds: Louisiana Waterthrush, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Louisiana Waterthrush, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Lucy's Warbler

Leiothlypis luciae

14.6 × 11.4 mm
Clutch: 3–7 eggs

White with fine reddish spots concentrated at large end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 132.
Description: Cornell Lab of Ornithology, All About Birds: Lucy's Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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MacGillivray's Warbler

Geothlypis tolmiei

17.8 × 13.6 mm
Clutch: 2–6 eggs

Creamy white, with variable tints and speckling.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 537.
Description: Cornell Lab of Ornithology, All About Birds: MacGillivray's Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Magnolia Warbler

Setophaga magnolia

16.3 × 12.3 mm
Clutch: 3–5 eggs

White, with variable speckles or spots.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 200.
Agrees with: Cornell Lab of Ornithology, All About Birds: Magnolia Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Magnolia Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Ontario Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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 Warbler

Geothlypis philadelphia

18.2 × 13.8 mm
Clutch: 2–5 eggs

White, speckled with reddish brown and black spots.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 527.
Description: Cornell Lab of Ornithology, All About Birds: Mourning Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Nashville Warbler

Leiothlypis ruficapilla

15.7 × 12.1 mm
Clutch: 4–5 eggs

White, usually specked with brown.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 108.
Agrees with: Cornell Lab of Ornithology, All About Birds: Nashville Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Nashville Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Ontario Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Northern Parula

Setophaga americana

16.5 × 12.1 mm
Clutch: 2–7 eggs

White to creamy-white, speckled with red, brown, purple, or gray.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 141.
Agrees with: Cornell Lab of Ornithology, All About Birds: Northern Parula, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Northern Parula, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Northern Waterthrush

Parkesia noveboracensis

19.1 × 14.6 mm
Clutch: 3–5 eggs

White with dark spots and scrawls concentrated around large end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 480.
Agrees with: Cornell Lab of Ornithology, All About Birds: Northern Waterthrush, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Northern Waterthrush, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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 Warbler

Peucedramus taeniatus

17.1 × 12.8 mm
Clutch: 3–4 eggs

Grayish with heavy olive-brown spotting and speckling.

Sources of information

Size: Average of 28 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 157.
Agrees with: Cornell Lab of Ornithology, All About Birds: Olive Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Olive Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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-crowned Warbler

Leiothlypis celata

16.2 × 12.7 mm
Clutch: 3–6 eggs

White to cream-colored, finely speckled with reddish-brown or chestnut.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 91.
Description: Cornell Lab of Ornithology, All About Birds: Orange-crowned Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Ovenbird

Seiurus aurocapilla

20.5 × 15 mm
Clutch: 3–6 eggs

White with reddish-brown spots and speckles.

Sources of information

Size: Cornell Lab of Ornithology, All About Birds: Ovenbird, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Ovenbird, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Painted Redstart

Myioborus pictus

16.5 × 12.8 mm
Clutch: 3–7 eggs

White with brown speckles, especially at the larger end.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 684.
Description: Cornell Lab of Ornithology, All About Birds: Painted Redstart, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Palm Warbler

Setophaga palmarum

17.4 × 12.9 mm
Clutch: 4–5 eggs

White speckled with brown and lavender spots.

Sources of information

Size: Average of 40 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 453.
Agrees with: Cornell Lab of Ornithology, All About Birds: Palm Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Palm Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Pine Warbler

Setophaga pinus

18.1 × 13.5 mm
Clutch: 3–5 eggs

White, grayish, or greenish white with brown speckles.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 410.
Agrees with: Cornell Lab of Ornithology, All About Birds: Pine Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Pine Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Prairie Warbler

Setophaga discolor

15.9 × 12.3 mm
Clutch: 3–5 eggs

Pale brownish or gray, often with a ring of spots near one end and more spots scattered over the rest of the shell.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 432.
Agrees with: Cornell Lab of Ornithology, All About Birds: Prairie Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Prairie Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Prothonotary Warbler

Protonotaria citrea

18.5 × 14.5 mm
Clutch: 3–7 eggs

White spotted with rust-brown to lavender.

Sources of information

Size: Cornell Lab of Ornithology, All About Birds: Prothonotary Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Prothonotary Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-faced Warbler

Cardellina rubrifrons

16.5 × 12.7 mm
Clutch: 3–6 eggs

White with fine brown speckles, concentrated around larger end.

Sources of information

Size: Average of 44 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 606.
Description: Cornell Lab of Ornithology, All About Birds: Red-faced Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Swainson's Warbler

Limnothlypis swainsonii

19.5 × 15 mm
Clutch: 1–7 eggs

White, usually unmarked, but may have faint reddish brown spotting.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 34.
Agrees with: Cornell Lab of Ornithology, All About Birds: Swainson's Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Swainson's Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Tennessee Warbler

Leiothlypis peregrina

16.1 × 12.4 mm
Clutch: 5–6 eggs

White, speckled with reddish brown.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 79.
Agrees with: Cornell Lab of Ornithology, All About Birds: Tennessee Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Tennessee Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Ontario Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Townsend's Warbler

Setophaga townsendi

17.4 × 12.9 mm
Clutch: 3–7 eggs

White with brown speckles.

Sources of information

Size: Average of 40 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 285.
Agrees with: Cornell Lab of Ornithology, All About Birds: Townsend's Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Townsend's Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Tropical Parula

Setophaga pitiayumi

16.3 × 12.2 mm
Clutch: 2–5 eggs

White, with brown speckling and spotting.

Sources of information

Size: Average of 36 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 151.
Description: Cornell Lab of Ornithology, All About Birds: Tropical Parula, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Virginia's Warbler

Leiothlypis virginiae

15.9 × 12.4 mm
Clutch: 3–5 eggs

Cream-colored with tiny brown spots.

Sources of information

Size: Average of 40 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 122.
Agrees with: Cornell Lab of Ornithology, All About Birds: Virginia's Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Virginia's Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Wilson's Warbler

Cardellina pusilla

15.9 × 12.4 mm
Clutch: 2–7 eggs

White to creamy white with fine reddish brown speckling or spotting.

Sources of information

Size: Average of 44 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 629.
Agrees with: Cornell Lab of Ornithology, All About Birds: Wilson's Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Wilson's Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection).
Clutch: Cornell Lab of Ornithology, All About Birds.
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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Worm-eating Warbler

Helmitheros vermivorum

17.4 × 13.6 mm
Clutch: 4–6 eggs

White to pink, with brown speckles.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 41.
Agrees with: Cornell Lab of Ornithology, All About Birds: Worm-eating Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Worm-eating Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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 Warbler

Setophaga petechia

16.6 × 12.6 mm
Clutch: 1–7 eggs

Grayish or greenish white with dark spots.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 168.
Agrees with: Cornell Lab of Ornithology, All About Birds: Yellow Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Yellow Warbler, Life History.
Drawing checked against a photo: Wikimedia Commons photo; Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-breasted Chat

Icteria virens

21.9 × 16.9 mm
Clutch: 3–6 eggs

White or off-white with speckles of red, brown, gray, or purple.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 589.
Agrees with: Cornell Lab of Ornithology, All About Birds: Yellow-breasted Chat, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Yellow-breasted Chat, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-rumped Warbler

Setophaga coronata

17.5 × 13.3 mm
Clutch: 1–6 eggs

White, speckled with brown, reddish-brown, gray, or purplish gray.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 244.
Agrees with: Cornell Lab of Ornithology, All About Birds: Yellow-rumped Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Yellow-rumped Warbler, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (Royal Saskatchewan Museum).
Clutch: Cornell Lab of Ornithology, All About Birds.
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-throated Warbler

Setophaga dominica

17.1 × 13 mm
Clutch: 3–5 eggs

Pale greenish with dark speckles.

Sources of information

Size: Average of 50 eggs: Bent, Life Histories of North American Wood Warblers (U.S. National Museum Bulletin 203, 1953), p. 354.
Agrees with: Cornell Lab of Ornithology, All About Birds: Yellow-throated Warbler, Life History.
Description: Cornell Lab of Ornithology, All About Birds: Yellow-throated Warbler, Life History.
Drawing checked against a photo: Cornell Lab of Ornithology, Birds of the World: Yellow-throated Warbler, Life History.
Clutch: Cornell Lab of Ornithology, All About Birds.
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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