Tapajos Fire-eye Pyriglena similis

Rather long-tailed antbird of humid forest understory in Amazonian lowlands in Brazil, from the Rio Tapajós to the Rio Xingú. Usually stays hidden in dense vegetation and thickets, sometimes attending army antswarms. Male is black; female is rufous-brown overall with a darker head. Both sexes have ruby-red eyes and a white patch on the back that is usually hidden; it is exposed when the bird is excited such as when defending its territory. Song is a very fast series of short whistles.