Cercomacra brasiliana
The Rio de Janeiro Antbird, *Cercomacra brasiliana*, is a small, secretive passerine belonging to the antbird family (Thamnophilidae), endemic to the Atlantic Forest of southeastern Brazil. Males typically exhibit a slate-gray plumage with contrasting white underparts and a distinctive white patch on the shoulder or hidden wing lining, often revealed during display. Females are largely olive-brown above, with rufous underparts and sometimes faint streaking, making them distinctly sexually dim...
Primarily found in the dense understory of lowland and foothill humid evergreen forests, often favoring areas with bamboo thickets, tangled vines, or secondary growth, typically up to 800-1000 meters elevation.
Primarily insectivorous, consuming various small arthropods such as beetles, ants, spiders, and insect larvae, which they glean from foliage and small branches.
Rio de Janeiro Antbirds are diurnal and generally solitary or found in pairs, moving stealthily through the dense undergrowth. They are insectivorous gleaners, methodically searching foliage, vines, and small branches for arthropods, often accompanying mixed-species flocks in their foraging round...
The Rio de Janeiro Antbird is strictly endemic to a fragmented range within the Atlantic Forest biome of southeastern Brazil. Its distribution encompasses coastal and inland areas from southern Espírito Santo, through Rio de Janeiro state, extending west into eastern Minas Gerais and south into n...
Vulnerable
- Endemic to the critically endangered Atlantic Forest biome of southeastern Brazil, making it a priority species for conservation. - Despite its name, its range extends beyond Rio de Janeiro state, including parts of Espírito Santo, Minas Gerais, and São Paulo. - Its secretive nature and prefere...