Gelochelidon nilotica
- 47 × 34 mm
- Clutch: 2–3 eggs
Breeds in United States, Mexico, Caribbean islands, Argentina, Brazil, Colombia, Ecuador, Uruguay
Light buff, yellowish, grayish, or greenish buff with irregular brown spots.
Sources of information
- Size
- Average of 47 eggs: Bent, Life Histories of North American Gulls and Terns (U.S. National Museum Bulletin 113, 1921), pp. 199–200.
Agrees with: Cornell Lab of Ornithology, All About Birds: Gull-billed Tern, Life History. - Description
- Cornell Lab of Ornithology, All About Birds: Gull-billed Tern, 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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