| Yellow-knobbed curassow | |
|---|---|
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| Male at the Emirates Park Zoo | |
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| Female at the Sylvan Heights Bird Park | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Galliformes |
| Family: | Cracidae |
| Genus: | Crax |
| Species: | C. daubentoni |
| Binomial name | |
| Crax daubentoni G.R. Gray, 1867 | |
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The yellow-knobbed curassow (Crax daubentoni) is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Colombia and Venezuela. [2]
The yellow-knobbed curassow was formerly classified as a subspecies of blue-billed curassow (Crax alberti). It is monotypic. A few subspecies previously proposed for it were determined to be hybrids or aberrant individuals and so were not adopted. [3]
The yellow-knobbed curassow is 84 to 92.5 cm (2.8 to 3.0 ft) long. Males usually weigh between 2,925 and 3,200 g (6.4 and 7.1 lb) but one weighed only 1,625 g (3.6 lb). A female weighed 2,325 g (5.1 lb). The male is the only curassow with a knobbed yellow cere and wattle. Males and females are mostly black with a white lower belly, vent area, and tips of the tail feathers. Females have a black cere and pale barring on the breast and lower belly. [3]
The yellow-knobbed curassow is found in northern Venezuela as far east as Sucre and Monagas states and in immediately adjacent northeastern Colombia. It primarily inhabits gallery forest and tall scrub in the llanos . It also occurs in valleys and ravines in the nearby foothills. In elevation it ranges between 500 and 1,500 m (1,600 and 4,900 ft) in Colombia and 100 and 800 m (330 and 2,600 ft) in Venezuela. [3]
The yellow-knobbed curassow forages in small family groups, or in combined ones of up to 15 birds in the dry season. Its primary foods are fruits and seeds with very small amounts of leaves, other plant parts, and insects. It feeds at all levels from the ground to the treetops. [3]
The yellow-knobbed curassow lays eggs during May and June, the early part of the rainy season. It appears to be polygynous. It builds an oval nest of branches and lianas lined with leaves and grass and usually sites it in a tree and concealed by vines. The clutch size is two eggs. [3]
Male yellow-knobbed curassows sing a "bomb-dropping" descending whistle, sometimes combined with a wing-clapping display or booming. The former is "4–10 rapid cracks of wings above the bird’s back, 'wapp!, wapp!, wapp!-wapp!-wapp!'". The booming is described as "uuumh...uhh". [3]
The IUCN has assessed the yellow-knobbed curassow as Near Threatened. It has a small population that is declining due to habitat loss and hunting. [1]
The chachalacas, guans and curassows are birds in the family Cracidae. These are species of tropical and subtropical Central and South America. The range of one species, the plain chachalaca, just reaches southernmost parts of Texas in the United States. Two species, the Trinidad piping guan and the rufous-vented chachalaca occur on the islands of Trinidad and Tobago respectively.
The great curassow is a large, pheasant-like bird from the Neotropical rainforests, its range extending from eastern Mexico, through Central America to western Colombia and northwestern Ecuador. Male birds are black with curly crests and yellow beaks; females come in three colour morphs, barred, rufous and black. These birds form small groups, foraging mainly on the ground for fruits and arthropods, and the occasional small vertebrate, but they roost and nest in trees. This species is monogamous, the male usually building the rather small nest of leaves in which two eggs are laid. This species is threatened by loss of habitat and hunting, and the International Union for Conservation of Nature has rated its conservation status as "vulnerable".
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. Males have black plumage, except for a white crissum, with curly feathers on the head and red bill ornaments and wattles. Females and juveniles are similar but lack the bill ornamentation and have a reddish-buff crissum area. The wattled curassow is the most ancient lineage of the southern Crax curassows. In captivity, it sometimes hybridises with the blue-billed curassow.
The red-billed curassow or red-knobbed curassow 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 due to hunting and deforestation, and it has possibly been extirpated from Minas Gerais. It is currently being reintroduced to Rio de Janeiro by means of individuals bred in captivity. As suggested by its common name, the male has a largely red bill, but this is lacking in the female.
The pale-bellied hermit is a species of hummingbird in the family Trochilidae. It is found in Colombia, Panama, and Venezuela.
The blue-billed curassow is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Colombia.
The black curassow, also known as the smooth-billed curassow and the crested curassow, is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in humid forests in northern South America in Colombia, Venezuela, the Guianas including Suriname, and far northern Brazil, and is introduced to Bahamas, Cuba, Jamaica, Haiti, Dominican Republic, Puerto Rico and Lesser Antilles. 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.
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 razor-billed curassow is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Bolivia, Brazil, Colombia, and Peru.
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 rufous-headed chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Colombia, Ecuador, and Peru.
The white-bellied chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in El Salvador, Guatemala, Honduras, Mexico, and Nicaragua.
The band-tailed guan is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Colombia and Venezuela.
The Marail guan or Cayenne guan is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Brazil, French Guiana, Guyana, Suriname, and Venezuela.
The lined quail-dove is a species of bird in the family Columbidae. It is found in Colombia, Trinidad and Tobago, and Venezuela.
The violaceous quail-dove is a species of bird in the family Columbidae. It is found in Argentina, Bolivia, Brazil, Colombia, Costa Rica, Guyana, Nicaragua, Panama, Paraguay, Peru, Suriname, and Venezuela.
The black-tailed trogon is a species of bird in the family Trogonidae, the quetzals and trogons. It is found Panama and northern South America.
The scaled chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Brazil.
The crowned woodnymph or violet-crowned woodnymph is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found from Belize and Guatemala to northern Peru.
