Grey-headed chachalaca | |
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At Cordillera de Talamanca, Costa Rica | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Galliformes |
Family: | Cracidae |
Genus: | Ortalis |
Species: | O. cinereiceps |
Binomial name | |
Ortalis cinereiceps Gray, GR, 1867 | |
The grey-headed chachalaca (Ortalis cinereiceps) is a member of an ancient group of birds of the family Cracidae, which includes chachalacas, guans, and curassows. It is found from Honduras to Colombia. [2] [3]
The family Cracidae is closely related to the guineafowl (Numididae), the pheasants, grouse and allies (Phasianidae), and the New World quail (Odontophoridae). [3] The grey-headed chachalaca was at one time treated as conspecific with the chestnut-winged chachalaca (Ortalis garrula). [4] [5] It is monotypic; several subspecies have been proposed and not accepted. [2] [5]
The grey-headed chachalaca is a medium-sized bird, similar in general appearance to turkeys, with a small head, long strong legs, and a long broad tail. They are 48 to 58 cm (1.6 to 1.9 ft) long and weigh 490 to 540 g (1.1 to 1.2 lb). They have fairly dull plumage, grayish brown above and paler below. The head is dark grey with a red dewlap and the blackish tail is tipped with buff. Their primary flight feathers are bright chestnut. Juveniles are browner overall, especially on the head. [5]
The grey-headed chachalaca is found from Mosquitia in eastern Honduras through eastern Nicaragua and most of Costa Rica and Panama into Colombia's Chocó Department. In addition to mainland Panama it occurs on Isla del Rey, where it might have been introduced by native Americans. It inhabits a variety of humid landscapes characterized by dense vegetation such as thickets, secondary forest, brushy abandoned fields, and thinned forests. It shuns the interior of dense forest though it can occur in their edges. In elevation it ranges from sea level to 1,700 m (5,600 ft). [5]
The grey-headed chachalaca forages typically in groups of six to 12 but sometimes up to 20, usually in the vegetation but sometimes on the ground. Its diet is about 75% fruit, 17% leaves, and 8% invertebrates. In the dry season it visits rivers to drink in the morning and evening. [5]
The grey-headed chachalaca's egg-laying season spans at least January to May, which overlaps the dry season. Its broad shallow nest is built of twigs, vines, and other vegetation and placed 1 to 2.4 m (3 to 8 ft) above ground in a tree or bush and often screened by vines. The female lays three dull white eggs and incubates them alone. [5]
The grey-headed chachalaca is less noisy than plain (O. vetula) or rufous-vented chachalacas (O. ruficauda). Its song is a soft "cha-cha-lac-ah". Flocks give raucous calls described as "kloik, kleeuk kraahk". It also makes a variety of screams, sharp alarm calls, and a quiet purr. [5]
The IUCN has assessed the grey-headed chachalaca as being of Least Concern. [1] It varies from fairly common to common throughout its range though in some areas the population has been significantly reduced by hunting. It adapts well to some habitat disturbance. [5]
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 little chachalaca is a bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Brazil, French Guiana, Suriname, Guyana, Venezuela and possibly Colombia.
The black-fronted piping guan or jacutinga in Brazilian Portuguese is a bird in the chachalaca, guan, and curassow family Cracidae. It is found in Argentina, Brazil, and Paraguay.
The sickle-winged guan is a species of bird in the chachalaca, guan, and curassow family Cracidae. It is found in Bolivia, Colombia, Ecuador, 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 Chaco chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Argentina, Bolivia, Brazil, Paraguay, and possibly Uruguay.
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 chestnut-winged chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Colombia.
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 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 buff-browed chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Brazil.
The rufous-bellied chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to western Mexico.
The white-browed guan is a species of bird in the chachalaca, guan, and curassow family Cracidae. It is endemic to northeastern Brazil.
The red-throated piping guan is a species of bird in the chachalaca, guan, and curassow family Cracidae. It is found in Bolivia and Brazil.
The East Brazilian chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to eastern Brazil.
The scaled chachalaca is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Brazil.
The chestnut-headed chachalaca is a bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Brazil.
The Yungas guan is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in the Andean foothills of Argentina and Bolivia.