10 eggs at true relative size, from the 52.5 mm egg of the Anhinga to the 90 mm egg of the American White Pelican.
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.
American White Pelican
Pelecanus erythrorhynchos
- 90 × 56.5 mm
Uniform chalky white, rough to the touch, becoming smooth and discolored over time.
Sources of information
- Size
- Average of 62 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 286.
- Description
- Cornell Lab of Ornithology, All About Birds: American White Pelican, Life History.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
Make a 3D-printable copy of this egg →See posters with this egg →
Anhinga
Anhinga anhinga
- 52.5 × 35 mm
- Clutch: 2–5 eggs
Conspicuously pointed at one end, pale bluish green, and overlaid with a chalky coating.
Sources of information
- Size
- Average of 42 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 230.
Agrees with: Cornell Lab of Ornithology, All About Birds: Anhinga, Life History. - Description
- Cornell Lab of Ornithology, All About Birds: Anhinga, 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).
Brandt's Cormorant
Urile penicillatus
- 62.2 × 38.6 mm
- Clutch: 1–6 eggs
Pale blue or bluish white.
Sources of information
- Size
- Average of 41 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 266.
- Description
- Cornell Lab of Ornithology, All About Birds: Brandt's Cormorant, 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).
Brown Pelican
Pelecanus occidentalis
- 73 × 46.5 mm
- Clutch: 2–4 eggs
Chalky white, becoming stained throughout incubation.
Sources of information
- Size
- Average of 46 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 297.
- Description
- Cornell Lab of Ornithology, All About Birds: Brown Pelican, 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).
Make a 3D-printable copy of this egg →See posters with this egg →
Double-crested Cormorant
Nannopterum auritum
- 63 × 37.5 mm
- Clutch: 1–7 eggs
Unmarked pale blue.
Sources of information
- Size
- Cornell Lab of Ornithology, All About Birds: Double-crested Cormorant, Life History.
- Description
- Cornell Lab of Ornithology, All About Birds: Double-crested Cormorant, 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).
Make a 3D-printable copy of this egg →See posters with this egg →
Great Cormorant
Phalacrocorax carbo
- 64.8 × 40.9 mm
- Clutch: 1–7 eggs
Pale bluish green with white chalky covering.
Sources of information
- Size
- Average of 42 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 238.
- Description
- Cornell Lab of Ornithology, All About Birds: Great Cormorant, 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).
Make a 3D-printable copy of this egg →See posters with this egg →
Magnificent Frigatebird
Fregata magnificens
- 68.4 × 46.5 mm
- Clutch: 1 eggs
White.
Sources of information
- Size
- Average of 50 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 309.
Agrees with: Cornell Lab of Ornithology, All About Birds: Magnificent Frigatebird, Life History. - Description
- Cornell Lab of Ornithology, All About Birds: Magnificent Frigatebird, 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).
Neotropic Cormorant
Nannopterum brasilianum
- 53.7 × 33.8 mm
- Clutch: 1–6 eggs
Light blue.
Sources of information
- Size
- Average of 41 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 263.
- Description
- Cornell Lab of Ornithology, All About Birds: Neotropic Cormorant, 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).
Pelagic Cormorant
Urile pelagicus
- 58.3 × 37.4 mm
- Clutch: 1–8 eggs
Greenish white to bluish.
Sources of information
- Size
- Average of 41 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 272.
- Description
- Cornell Lab of Ornithology, All About Birds: Pelagic Cormorant, 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).
Make a 3D-printable copy of this egg →See posters with this egg →
Red-faced Cormorant
Urile urile
- 60.3 × 37.6 mm
- Clutch: 2–3 eggs
Pale greenish or bluish.
Sources of information
- Size
- Average of 47 eggs: Bent, Life Histories of North American Petrels and Pelicans and Their Allies (U.S. National Museum Bulletin 121, 1922), p. 281.
- Description
- Cornell Lab of Ornithology, All About Birds: Red-faced Cormorant, 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).