White-winged potoo

The main range of the white-winged potoo is the central Amazon Basin at the confluence of four rivers, from the Rio Negro on the north, to the Madeira River on the south, in eastern regions of Brazil's Amazonas state. Also in the Basin, upstream localised populations occur west of the Madeira river near Bolivia, also northwestwards into the border areas of Peru, and in northern Peru.

The main contiguous range extends north from the Amazon River proper and the confluences, into eastern Roraima state, and east of Roraima's main southerly flowing Branco River. The range extends north into central Guyana; the white-winged potoo's range in this northern strip is about 350 km wide and extends into Guyuna 75 km from the Caribbean coast. The range is in the north-flowing Essequibo River drainage, and the western higher regions of the drainage; it is not in the central river drainage proper, only downstream, and Guyana's southern highlands upstream.