About Mitu tuberosum (Spix, 1825)
The razor-billed curassow, scientific name Mitu tuberosum (Spix, 1825), measures 83 to 89 cm (2.7 to 2.9 ft) in length, and males weigh approximately 3,860 g (8.5 lb). Most of its plumage is black with a prominent purplish blue gloss. The lower belly and undertail coverts are chestnut-colored, and the tips of its tail feathers are white. It has a tall, ragged crest. Its large, bright red bill is laterally compressed, a feature that gives the species its common name. The razor-billed curassow is distributed across much of Amazonia. Most of its range lies south of the Amazon River, covering eastern Peru, northern Bolivia, and northern Brazil extending all the way to the Atlantic coast. North of the Amazon River, it occurs in southeastern Colombia, extreme northeastern Peru, and Brazil as far east as the Rio Negro. It inhabits lowland evergreen forest, and is found primarily in terra firme forest, but also occurs in gallery forest, várzea forest, and along the margins of lakes and streams. In terms of elevation, it ranges from sea level up to 1,350 m (4,400 ft), though it only locally exceeds 1,000 m (3,300 ft).
