Dusky Antbird

The dusky antbird or tyrannine antbird (Cercomacroides tyrannina) is a passerine bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found from Mexico south through Central America and in Brazil, Colombia, Ecuador, French Guiana, Guyana, Suriname, and Venezuela. == Taxonomy and systematics == The dusky antbird was described by the English zoologist Philip Sclater in 1855 and given the binomial name Pyriglena tyrannina. The species was subsequently placed in genus Cercomacra but a molecular phylogenetic study published in 2014 found that Cercomacra, as then defined, was polyphyletic. The genus was split to create two monophyletic genera, and six species including the dusky antbird were moved to the newly erected genus Cercomacroides. The dusky antbird has these four subspecies: C. t. crepera (Bangs, 1901) C. t. tyrannina (Sclater, PL, 1855) C. t. vicina (Todd, 1927) C. t. saturatior (Chubb, C, 1918) What is now Willis's antbird (C. laeta) was originally described as a fifth subspecies. A 1997 study found that Willis's antbird differed from the other dusky antbird subspecies in both plumage and voice and as a result, Willis's antbird was promoted to species status. == Description == The dusky antbird is 13 to 15 cm (5.1 to…