Ochre-rumped Antbird

The ochre-rumped antbird is 12.5 to 13.5 cm (4.9 to 5.3 in) long. Adult males have a black crown, a long white supercilium, a black band through the eye, and white cheeks with black speckles. Their back is gray with a few black and white feathers and a white patch between the scapulars. Their rump is light rufous. Their wings are blackish with narrow buff edges on the flight feathers and wide white tips on the coverts. Their throat and breast are white with black streaks that are heavier on the latter. Their flanks and crissum are plain rufous. Females have a buff-streaked crown, an olive-gray back, and duller buffier underparts that are less heavily streaked than the male's.

The ochre-rumped antbird is a bird of the Atlantic Forest Mountains EBA in southeastern Brazil. It is found from central and southeastern Bahia south through eastern Minas Gerais and Espírito Santo to eastern São Paulo, eastern Paraná, and eastern Santa Catarina. It primarily inhabits the understorey of bamboo and vine thickets in montane evergreen forest but also occurs locally in lowland evergreen forest. In elevation it ranges between 300 and 1,950 m (1,000 and 6,400 ft).

The ochre-rumped antbird feeds mostly on a wide variety of arthropods. It typically forages individually, in pairs, and in family groups, usually within about 3 m (10 ft) of the ground and only rarely higher. It sometimes joins mixed-species feeding flocks that pass through its territory and is not known to follow army ant swarms. It forages in bamboo stands and nearby vine tangles, actively hopping through them and flicking its tail. It gleans prey primarily from dead leaves, mostly by reaching and sometimes lunging from a perch.