IMG_7756
2/8/13 Coiba Island, Panama

Geographic Variation
The Barred Antshrike is a polytypic species. Clements (2007) and the Handbook of the Birds of the World (Zimmer and Isler 2003) recognize 12 subspecies, although previous accounts have recognized as many as 17 (see Assis et al. 2007). For males, the subspecies vary in the amount of white in the crown and tail feathers, and in the width of the black and white bars. The females of the different subspecies vary in the relative darkness of plumage (Zimmer and Isler 2003).
• Thamnophilus doliatus eremnus, Wetmore, 1957. Range: Coiba Island, southern Panama. This subspecies resembles nigricristatus but is more deeply colored (Zimmer and Isler 2003).
http://neotropical.birds.cornell.edu/portal/species/identification?p_p_spp=367746
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