Chapman’s Antshrike

Chapman's antshrike (Thamnophilus zarumae) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Ecuador and Peru. == Taxonomy and systematics == Chapman's antshrike was originally described as a species but was soon transferred to be a subspecies of the barred antshrike (Thamnophilus doliatus). At the same time a new taxon was described as another subspecies of the barred antshrike (T. d. palamblae). In the late twentieth century Chapman's antshrike again began to be recognized as a separate species with palambae as a subspecies, and a few years later a phylogenetic study showed that it was not closely related to the barred antshrike. The two subspecies of Chapman's antshrike are therefore T. d. zarumae and T. d. palamblae. == Description == Chapman's antshrike is 14 to 15.5 cm (5.5 to 6.1 in) long and weighs about 22 g (0.78 oz). Members of genus Thamnophilus are largish members of the antbird family; all have stout bills with a hook like those of true shrikes. This species exhibits marked sexual dimorphism though both sexes have a bushy crest. Adult males of the nominate subspecies T. d. zarumae have a black and white streaked forehead…