The White-browed Hawk is a denizen of the interior of humid lowland forest in southern Amazonia. Traditionally, it has been considered the replacement species on the south bank of the Amazon River of the Black-faced Hawk (Leucopternis melanops), although there are numerous recent reports of Black-faced Hawks far into southern Amazonia. The White-browed Hawk is distinctive in Amazonia with an all black back and head with some white mottling, and white below with an obvious white supercilium. It apparently is rare throughout its range though this may be an artifact of its inconspicuous habits; for example, unlike some other species, such as the White Hawk (Leucopternis albicollis), the White-browed Hawk never soars. It is very poorly known with very limited information on its breeding or natural history. A snake and a lizard are the only confirmed prey in its diet.