Named for its well-developed white crest feathers, the White-crested Guan has deep chestnut-colored underparts and very dark green upperparts. This Brazilian endemic is largely restricted to south-central and southeastern Amazonia, although it just ranges across the Rio Araguaia and hence into the Cerrado biome. Increased fieldwork in the last couple of decades has virtually doubled the known size of the species’ range. It prefers dense humid terra firme forest, but is seemingly also found in seasonally flooded areas, at least locally. Available data concerning the White-crested Guan’s ecology are virtually non-existent. The species’ population is presumed to be relatively small, perhaps fewer than 10,000 individuals, and under pressure due to significant deforestation over large areas within the easternmost portion of its range, as well as through hunting. These factors have lead to it being treated as Near Threatened by the IUCN.