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Illustration of a Keel-billed Toucan (Ramphastos sulfuratus) egg, 39.25 × 29 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Ramphastos sulfuratus

  • 39.25 × 29 mm (approx.)
  • Clutch: 1–4 eggs
Breeds in Mexico, Central America (6 countries) and South America (2 countries)
show all 9Mexico: Mexico
Central America: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama
South America: Colombia, Venezuela

Dull white, unmarked and lustreless, sculptured with irregular pitted grooves running lengthwise, strongest at the large end.

Sources of information

Size
Van Tyne 1929 (Univ. Mich. Mus. Zool. Misc. Publ. 19), quoted in Wetmore, A. 1968. The birds of the Republic of Panamá, part 2. Smithsonian Miscellaneous Collections 150(2)., p. 523.
Description
Wetmore, A. 1968. The Birds of the Republic of Panamá. Part 2. Smithsonian Miscellaneous Collections 150(2)., p. 523.
Agrees with: Skutch, A. F. 1971. Life history of the Keel-billed Toucan. Auk 88: 381–396., pp. 385–386, 394.
Drawing checked against a photo: Van Tyne 1929, pl. IV fig. 7 (photograph of eggs, Barro Colorado Island), University of Michigan Deep Blue.
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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