formigueiro-de-barriga-preta vs papa-formiga-vermelho

The Black-bellied Antwren and Rusty-backed Antwren can be distinguished by plumage and habitat preferences. Black-bellied Antwren males are darker above with less obvious white flanks, while females have a broad white supercilium and paler underparts. Rusty-backed Antwrens are more rufescent above, with males having a black throat bordered in white. Habitat also differs, with Black-bellied Antwrens found in taller caatinga and deciduous woodlands, while Rusty-backed Antwrens prefer open habitats like cerrado.

Look for the broad white supercilium in female Black-bellied Antwrens and the rufescent upperparts in Rusty-backed Antwrens. Note the habitat: Black-bellied Antwrens prefer taller caatinga and woodlands, while Rusty-backed Antwrens are found in open habitats like cerrado.

Black-bellied Antwren males are darker above with less obvious white flanks, and females have a broad white supercilium and paler underparts. Rusty-backed Antwrens are more rufescent above, with males featuring an extensive black throat bordered in white.

Black-bellied Antwrens are typically found in taller caatinga, tropical deciduous woodland, or second growth at the ecotone between caatinga and cerrado. Rusty-backed Antwrens occur broadly across cerrado and other open habitats in central Brazil.