Black-hooded antwren

The black-hooded antwren (Formicivora erythronotos) is an Endangered Species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is endemic to Brazil.

The black-hooded antwren is 11 cm (4.3 in) long. Adult males have a deep rufous back, rump, and uppertail coverts. They are otherwise almost entirely black, with white tips on the wing coverts and white flanks. The center of their throat and breast are black, their flanks white, and their undertail coverts have white bars. Adult females also have deep rufous upperparts. They are mostly olive-brown otherwise, which color is paler and buffier on their underparts. Their wings and tail are blackish with white tips on the coverts. They have variable amounts of thin dark streaks or mottling on their head and throat. Adults have a slim black bill.