Yapacana Antbird

The Yapacana antbird (Aprositornis disjuncta) is a species of passerine bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found Brazil, Colombia, and Venezuela. == Taxonomy and systematics == The Yapacana antbird was originally described by the American ornithologist Herbert Friedmann in 1945 and given the binomial name Myrmeciza disjuncta. A molecular phylogenetic study published in 2013 found that the genus Myrmeciza, as then defined, was polyphyletic. In the resulting rearrangement to create monophyletic genera the Yapacana antbird was moved to its own genus Aprositornis. The name of the genus combines the Ancient Greek words aprositos "unapproachable" or "hard to get at" and ornis "bird". The species' English name comes from the type locality, Cerro Yapacana on the upper Orinoco River in Venezuela. The Yapacana antbird is monotypic. == Description == The Yapacana antbird is 13 to 13.5 cm (5.1 to 5.3 in) long and weighs 14 to 15 g (0.49 to 0.53 oz). Adult males have a mostly gray face. Their crown, neck, back, and rump are dark gray with a white patch between the shoulders. Their tail is blackish gray. Their wings are blackish gray with narrow white tips on the flight feathers and wing…