- Order: Passeriformes
- Family: Thamnophilidae
Beruri, Amazonas, Brazil; 31 July 2011 © Anselmo d'Affonseca
Accurately but not necessarily well named, this is actually one of four Cercomacra antbirds in which the male is largely black, relieved by white wing markings and with a contrasting red eye. Females possess a blackish tail, whilst the rest of their plumage conforms well to the pattern shown by other congenerics of the same sex, being warm rufous-buff below and browner above, with brighter wing spotting. The Black Antbird is endemic to upper Amazonia, where it is encountered in the undergrowth of humid evergreen forest from southern Colombia south to northern Bolivia, and east across western Brazil. It is a principally lowland species, but ranges to approximately 1300 m in the foothills of the Andes.
. 2010. Black Antbird (Cercomacra serva), Neotropical Birds Online (T. S. Schulenberg, Editor). Ithaca: Cornell Lab of Ornithology; retrieved from Neotropical Birds Online: http://neotropical.birds.cornell.edu/portal/species/overview?p_p_spp=386451