The Black-fronted Nunbird (Monasa nigrifrons) is a species of bird placed in the Bucconidae family of puffbirds. It is found in Amazonian
Bolivia, Brazil, Colombia, Ecuador, and Peru. It is also found in the regions of eastern and southeastern Brazil. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical swamps, and heavily degraded former forest. Though mostly occurring in the Amazon Basin south of the Amazon River, This species also occurs in two river regions to the north. The first in the east between the confluence with the Xingu River westwards to the Tapajós River. The second region is at the confluence of the Rio Negro and upstream on the Amazon.
The species range expands eastward and southward beyond the Tocantins, of the
Araguaia-Tocantins River system towards the region of the Cerrado of east-central Brazil. It is also found in the Pantanal, but not the very southern portion. There are two localized populations in eastern coastal Brazil: the northern population in Alagoas state, and the southern population in Rio de Janeiro state.
The Black-fronted Nunbird is a striking bird, with a black body and bright red-orange bill. It is found in small gregarious groups in lower to mid-level forests.
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