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Eggs

Illustration of a Snowy Egret (Egretta thula) egg, 43 × 32.4 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Egretta thula

  • 43 × 32.4 mm
  • Clutch: 2–6 eggs
Breeds in United States, Mexico, Central America (7 countries), the Caribbean and South America (13 countries)
show all 27Canada & United States: United States
Mexico: Mexico
Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Aruba, Bonaire, Sint Eustatius and Saba, Curaçao, Trinidad and Tobago, Caribbean islands
South America: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela

Pale greenish blue.

Sources of information

Size
Average of 46 eggs: Bent, Life Histories of North American Marsh Birds (U.S. National Museum Bulletin 135, 1927), p. 150.
Agrees with: Cornell Lab of Ornithology, All About Birds: Snowy Egret, Life History.
Description
Cornell Lab of Ornithology, All About Birds: Snowy Egret, Life History.
Drawing checked against a photo: Bird Eggs of Canada photo (University of Saskatchewan Department of Biology Natural History Collection); de la Peña 2025, Aves Argentinas tomo 6, p. 240.
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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