| Razor-billed curassow | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Galliformes |
| Family: | Cracidae |
| Genus: | Mitu |
| Species: | M. tuberosum |
| Binomial name | |
| Mitu tuberosum (Spix, 1825) | |
 | |
| Distribution of the razor-billed curassow | |
| Synonyms | |
Crax tuberosa (Spix, 1825) | |
The razor-billed curassow (Mitu tuberosum) is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Bolivia, Brazil, Colombia, and Peru. [2] [3]
The razor-billed curassow was originally placed in genus Crax but genetic data confirm that Mitu is a valid genus. It was for a time treated as a subspecies of Alagoas curassow (Mitu mitu) and they are now treated as sister species. [4] The razor-billed curassow is monotypic. [2]
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. [5]
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). [5]
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. [5]
The razor-billed curassow is occasionally polygynous and might be regularly so. In northern Peru at least, its nesting season spans from November to February. One nest was described as "a perfect round cup" of branches, lianas, and leaves. The clutch size is two or three eggs. [5]
The razor-billed curassow's song is " "a series of deep booming notes, the first 3 rising, the last 2 even at a slightly higher pitch: BMMM mmMMM... mmMMM'BMMM-BMMM, sometimes followed after pause by sharp BMM!." It is sung from a perch at any time of day but most frequently before and at dawn and during the breeding season. Its calls include "rising whistles and popping notes" and "soft pweet calls". [5]
The IUCN has assessed the razor-billed curassow as being of Least Concern. [1] It has a very large range. However, its population has not been quantified and is believed to be declining, primarily because of heavy hunting pressure. [5]
The straight-billed hermit is a species of bird in the family Trochilidae, the hummingbirds. It is found in Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The needle-billed hermit is a species of hummingbird in the family Trochilidae. It is found in Bolivia, Brazil, and Peru.
Salvin's curassow is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Colombia, Ecuador, and Peru.
The crestless curassow is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Brazil, Colombia, Guyana, and Venezuela.
The nocturnal curassow is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Brazil, Colombia, Ecuador, Peru, and Venezuela.
The speckled chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Bolivia, Brazil, Colombia, Ecuador, and Peru.
The chestnut-capped puffbird is a species of bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela.
The white-chested puffbird is a species of near-passerine bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is one of seven species in the genus Malacoptila. It is found in Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The semicollared puffbird is a species of near-passerine bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is one of seven species of the genus Malacoptila. It is found in Bolivia, Brazil, and Peru.
The fulvous-chinned nunlet is a species of near-passerine bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is found in Bolivia, Brazil, and Peru.
The brown-banded puffbird is a species of bird in the family Bucconidae, the puffbirds, nunlets, and nunbirds. It is found in Bolivia, Brazil, Colombia, Peru, and Venezuela.
The spot-tailed nightjar is a species of nightjar in the family Caprimulgidae. It is found in Honduras, Mexico, Nicaragua, and every mainland South American country except Chile and Uruguay.
The blackish nightjar is a species of bird in the family Caprimulgidae. It is found in Brazil, Bolivia, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The sickle-winged nightjar is a species of nightjar in the family Caprimulgidae. It is found in Argentina, Brazil, Paraguay and possibly Uruguay.
The rufous-bellied nighthawk is a species of nightjar in the family Caprimulgidae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela.
The cinnamon screech owl is a species of owl in the family Strigidae. It is found in the Andes of Ecuador and Peru and possibly Colombia.
The planalto hermit is a species of bird in the family Trochilidae, the hummingbirds. It is found in Argentina, Bolivia, Brazil, Paraguay, and Peru.
The white-winged potoo is a species of bird in the family Nyctibiidae. It is found in Brazil, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The Andean potoo is a species of bird in the family Nyctibiidae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela.
The Amazonian trogon, is a near passerine bird in the family Trogonidae, the trogons and quetzals. It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela.
