Razor-billed Curassow

The razor-billed curassow is 83 to 89 cm (2.7 to 2.9 ft) long and males weigh about 3,860 g (8.5 lb). Their plumage is mostly black with a strong purplish blue gloss. The lower belly and undertail coverts are chestnut and the tips of the tail feathers white. It has a tall ragged crest. Its large bright red bill is laterally compressed, which gives the species its common name.

The razor-billed curassow is found in much of Amazonia, mostly south of the Amazon River in eastern Peru, northern Bolivia, and northern Brazil all the way to the Atlantic coast. It is found north of the Amazon in southeastern Colombia, extreme northeastern Peru, and Brazil as far east as the Rio Negro. It inhabits lowland evergreen forest, primarily terra firme but also gallery and várzea forests and along the margins of lakes and streams. In elevation it ranges from sea level to 1,350 m (4,400 ft) though it may only locally exceed 1,000 m (3,300 ft).

The razor-billed curassow typically forages alone or in pairs on the forest floor. Its diet is mostly fallen fruits and also includes leaves, insects, fungi, and small vertebrates.