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Genus Crax
Blue-billed Curassow - It is found only in Colombia; areas of its range in the south and east are bordered by the Magdalena River. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Black Curassow - The Black Curassow is a species of bird in the Cracidae family, the chachalacas, guans, and curassows. It is found in humid forests in northern South America in Colombia, Venezuela, the Guianas and far northern Brazil. It is the only Crax curassow where the male and female cannot be separated by plumage, as both are essentially black with a white crissum, and have a yellow or orange-red cere.
Red-billed curassow - The Red-knobbed Curassow or Red-billed Curassow, Crax blumenbachii, is an endangered species of Cracid that is endemic to lowland Atlantic Forest in the states of Espírito Santo, Bahia and Minas Gerais in southeastern Brazil. Its population is decreasing As suggested by its common name, the male has a largely red bill, but this is lacking in the female.
Yellow-knobbed Curassow - The Yellow-knobbed Curassow is a large species of bird found in forest and woodland in Colombia and Venezuela. It feeds mainly on the ground, but flies up into trees if threatened. Its most striking features are its crest, made of feathers that curl forward, and the fleshy yellow knob at the base of its bill. Females lack this fleshy yellow knob, but otherwise resemble the male in the plumage, being overall black with a white crissum. The adult is 84-92.5 cm It eats fruits, leaves, seeds, and small animals. Unlike most other gamebirds, curassows nest off the ground, with both sexes helping in the construction. The female lays just 2 eggs - a tiny clutch compared to those of many ground-nesting gamebirds.
Wattled Curassow - The Wattled Curassow is a threatened member of the family Cracidae, the curassows, guans, and chachalacas. It is found in remote rainforests in the western Amazon Basin in South America.
Great Curassow - A monogamous species, the Great Curassow is distributed in rainforest from eastern Mexico throughout Central America, to western Colombia and northwest Ecuador. Its diet consists mainly of fruits, figs and arthropods.