About Mitu tomentosum (Spix, 1825)
The crestless curassow, Mitu tomentosum (Spix, 1825), measures 75 to 85 cm (2.5 to 2.8 ft) in length. Males weigh between 2,300 and 3,050 g (5.1 to 6.7 lb), while females weigh 1,300 to 2,425 g (2.9 to 5.3 lb). Its plumage is mostly black, with a dark blue to purplish gloss. Its belly and the tip of its tail are a rich chestnut color. Unlike most other curassow species, it has no crest, and there is no swelling on its red bill. The crestless curassow is distributed across eastern Colombia, southern Venezuela, northwestern Brazil, and southwestern Guyana. It primarily lives in riparian rainforest, but it also occurs in gallery forest in the llanos of Colombia and Venezuela. It generally prefers areas with dense undergrowth. It is a lowland species; in Colombia it occurs at elevations up to 500 m (1,600 ft), and in Venezuela it occurs up to 600 m (2,000 ft).
