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Eggs

Illustration of a Rufous-capped Antthrush (Formicarius colma) egg, 29.8 × 22.8 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Formicarius colma

  • 29.8 × 22.8 mm
  • Clutch: 2 eggs
Breeds in South America (9 countries)
show all 9South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela

Pure white, unmarked.

Sources of information

Size
Average of 6 eggs: Schönwetter, M. 1960–1992. Handbuch der Oologie (ed. W. Meise), Lieferung 14. Akademie-Verlag, Berlin., p. 52.
Description
Wetmore, A. (1972). The Birds of the Republic of Panama, part 3. Smithsonian Misc. Coll. 150.
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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