The Harris's Hawk is a distinctive brown-and-rufous raptor of open habitats. It is dark brown overall, with chestnut upperwing coverts forming large and contrasting shoulder patches and chestnut thighs. The tail has a distinctive pattern. It is mostly dark brown but with a white terminal band and extensive white at the tail base extending onto the tail coverts. The Harris's Hawk occurs from the southwestern United States south through Central America and in the drier regions west of the Andes south to Peru. East of the Andes it occurs in the llanos of Venezuela and Colombia and in cerrado, pampas, and chaco from eastern Brazil and Bolivia south to central Argentina and central Chile. With regard to diet this hawk is a generalist, although it seems to rely heavily on mammals for prey in most areas. Hunting sometimes is undertaken is cooperative groups that band together in pursuit of prey or take turns pursuing prey. The stick nest is placed in a tree, cactus, or human structure and cooperative breeding has been documented in some populations. The Harris's Hawk appears to be largely sedentary, although local movements may occur.