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Illustration of a Barred Antshrike (Thamnophilus doliatus) egg, 23.3 × 16.8 mm
Illustration © 2026 Lincoln Savi, Savi Made. Free to use with credit.

Thamnophilus doliatus

  • 23.3 × 16.8 mm
  • Clutch: 2 eggs
Breeds in Mexico, Central America (7 countries), Trinidad and Tobago and South America (11 countries)
show all 20Mexico: Mexico
Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama
The Caribbean: Trinidad and Tobago
South America: Argentina, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela

White to creamy white, spotted and finely lined with chocolate, reddish-brown, dark grey and purplish brown, the marks often concentrated in a wreath at the larger end.

Sources of information

Size
Average of 7 eggs: Wetmore, A. 1972. The Birds of the Republic of Panamá. Part 3. Passeriformes: Dendrocolaptidae to Oxyruncidae. Smithsonian Miscellaneous Collections 150(3)., pp. 136–137.
Agrees with: Skutch, A. F. 1969. Life Histories of Central American Birds III. Pacific Coast Avifauna 35 (Barred Antshrike pp. 192–196; egg figures read only as quoted by Wetmore 1972, original PDF too large to fetch), pp. 192–196; Di Giacomo, A. G. 1998. Nidificación de Thamnophilus doliatus en Argentina. Hornero 15: 53–57., p. 54.
Description
Wetmore, A. 1972. The Birds of the Republic of Panamá. Part 3. Smithsonian Miscellaneous Collections 150(3) (quoting Skutch 1969 and G. R. Meyer field notes)., pp. 136–137.
Agrees with: Di Giacomo, A. G. 1998. Nidificación de Thamnophilus doliatus en Argentina. Hornero 15: 53–57., p. 54.
Drawing checked against a photo: Museum of Vertebrate Zoology, Berkeley, MVZ:Egg:13018 (St. Joseph, Trinidad), 'Photograph of eggs' (A. A. Varma & J. Bates), via Arctos; GBIF record of MVZ:Egg:13018; iNaturalist observation 102482404 (Lago Bayano, Panama; annotated life stage 'Egg' on GBIF; not visually verified).
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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