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Illustration of a Horned Screamer (Anhima cornuta) egg, 84.6 × 61 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Anhima cornuta

  • 84.6 × 61 mm
  • Clutch: 2–7 eggs
Breeds in South America (10 countries)
show all 10South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Venezuela

Cinnamon brown to buffy brown, unmarked, rather dull.

Sources of information

Size
Average of 9 eggs: Studer & Crozariol 2022, New breeding information on Brazilian birds 1, Bull. B.O.C. 142(4): 410–465, p. 428.
Description
Hauber, M. E. (ed.) 2014. The Book of Eggs. University of Chicago Press, p. 73.
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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