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Illustration of a Chestnut-backed Antbird (Poliocrania exsul) egg, 23.52 × 17.02 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Poliocrania exsul

  • 23.52 × 17.02 mm
  • Clutch: 2 eggs
Breeds in Costa Rica, Honduras, Nicaragua, Panama, Colombia, Ecuador

Dull white to pinkish white, heavily blotched, speckled and streaked lengthwise with purplish chestnut, rufous brown and lilac, heaviest at the thick end.

Sources of information

Size
Average of 10 eggs: Wetmore, A. 1972. The birds of the Republic of Panamá, part 3. Smithsonian Miscellaneous Collections 150(3)., pp. 202–204.
Description
Skutch 1969, Life Histories of Central American Birds III (Pacific Coast Avifauna 35); supporting: Wetmore 1972, The Birds of the Republic of Panama, part 3; supporting: Hauber et al. 2014, The Book of Eggs.
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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