6 eggs at true relative size, from the 19 mm egg of the Budgerigar to the 50 mm egg of the Kakapo.
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.
Budgerigar
Melopsittacus undulatus
- 19 × 13 mm
White.
Sources of information
- Size
- Budgerigar Council of South Australia: Budgerigar Eggs.
- Description
- Budgerigar Council of South Australia: Budgerigar Eggs.
- Shape
- Drawn from the length and width, with the taper estimated from the typical eggs of its group (how these eggs are drawn).
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).
Kakapo
Strigops habroptilus
- 50 × 38 mm
White.
Sources of information
- Size
- New Zealand Birds Online: Kākāpō.
- Description
- New Zealand Birds Online: Kākāpō.
- 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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Monk Parakeet
Myiopsitta monachus
- 29 × 22.2 mm
- Clutch: 5–8 eggs
White.
Sources of information
- Size
- Average of 47 eggs: Peris & Aramburu 1995, Studies on Neotropical Fauna and Environment 30(2): 115–119 (Argentina, 47 eggs).
- Description
- Cornell Lab of Ornithology, All About Birds: Monk Parakeet, 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).
Nanday Parakeet
Aratinga nenday
- 28 × 22 mm (approx.)
White.
Sources of information
- Size
- Estimated: no published average found, so this is drawn about Monk Parakeet-sized.
- 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).
Red-crowned Parrot
Amazona viridigenalis
- 37 × 30 mm
- Clutch: 2–5 eggs
White.
Sources of information
- Size
- Cornell Lab of Ornithology, All About Birds: Red-crowned Parrot, Life History.
- Description
- Cornell Lab of Ornithology, All About Birds: Red-crowned Parrot, 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).