Cercomacra carbonaria
The Rio Branco Antbird, *Cercomacra carbonaria*, is a critically imperiled species within the Thamnophilidae family, recognized for its striking sexual dimorphism and extremely restricted distribution in northern Brazil. Males are entirely glossy black, punctuated by a conspicuous white patch on the bend of the wing, usually measuring around 14-15 cm in length and weighing 15-20 grams. Females, in contrast, sport a more subdued palette of dark gray upperparts that grade into a lighter gray on...
This highly specialized antbird exclusively inhabits dense, tangled thickets and secondary growth found along the margins of rivers and streams, typically within lowland riparian zones below 200 meters elevation. It shows a strong preference for gallery forest edges and highly disturbed yet dense...
The diet of the Rio Branco Antbird consists primarily of various insects and other arthropods, including grasshoppers, beetles, and spiders. It forages by gleaning these prey items from the leaves and branches within its dense riparian habitat.
The Rio Branco Antbird is a secretive, diurnal species, often encountered moving quietly through the dense undergrowth, usually in pairs or small family groups. Foraging involves meticulously gleaning insects and other arthropods from foliage and small branches within its preferred riparian thick...
The Rio Branco Antbird possesses an incredibly restricted and fragmented geographic distribution, confined exclusively to a small area of northern Brazil within the state of Roraima. Its range is centered around the lower Rio Branco basin, particularly near the confluence of the Rio Branco and Ri...
Endangered
- The Rio Branco Antbird was considered "lost" for nearly 50 years, with no confirmed sightings between 1970 and 2002, making its rediscovery a significant event for ornithologists. - Its name comes from the Rio Branco (White River) in northern Brazil, emphasizing its strict association with this...