Bare-eyed Antbird

The bare-eyed antbird (Rhegmatorhina gymnops), occasionally known as the Santarem antbird, is a Vulnerable species of insectivorous passerine bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is endemic to Brazil. == Taxonomy and systematics == The bare-eyed antbird was formally described by the American ornithologist Robert Ridgway in 1888 and given the binomial name Rhegmatorhina gymnops. The five members of genus Rhegmatorhina are sisters to the three species of genus Gymnopithys. The bare-eyed antbird is monotypic. == Description == The bare-eyed antbird is 13.5 to 14.5 cm (5.3 to 5.7 in) long and weighs about 27 to 30 g (0.95 to 1.1 oz). Both sexes have a crest and a pale grayish green ring of bare skin around the eye. Adult males have a blackish gray head and upper breast. Their upperparts and tail are dark reddish yellow-brown and their wings a brighter rufous. Their belly and vent area are dark grayish brown with somewhat browner flanks. Adult females have a brownish black head and throat. Their upperparts, wings, and tail are the same as the male's. Their underparts are dark yellowish brown. Juvenile males resemble adult males but are browner; juveniles of both sexes have a…