Английская Википедия:Common black hawk
Шаблон:Short description Шаблон:Speciesbox
The common black hawk (Buteogallus anthracinus) is a bird of prey in the family Accipitridae, which also includes the eagles, hawks, and vultures.
Description
The adult common black-hawk is Шаблон:Convert long and weighs Шаблон:Convert on average. It has very broad wings, and is mainly black or dark gray. The short tail is black with a single broad white band and a white tip. The bill is black and the legs and cere are yellow. The adults resemble zone-tailed hawks, but have fewer white bars on their tail and are larger in size.
Sexes are similar, but immature birds are dark brown above with spotting and streaks. Their underparts are buff to whitish with dark blotches, and the tail has a number of black and white bars.
Subspecies
It formerly included the Cuban black-hawk (Buteogallus gundlachii) as a subspecies. The mangrove black hawk, traditionally considered a distinct species, is now generally considered a subspecies, B. a. subtilis, of the common black-hawk.[1]
Distribution and habitat
The common black-hawk is a breeding bird in the warmer parts of the Americas, from the Southwestern United States through Central America to Venezuela, Peru, Trinidad, and the Lesser Antilles. It is a mainly coastal, resident bird of mangrove swamps, estuaries and adjacent dry open woodland, though there are inland populations, including a migratory population in north-western Mexico and Arizona.
Behaviour
Breeding
The bird builds a platform nest of sticks fifteen to one hundred feet above the ground in a tree, often a mangrove. Nests are often reused and tend to grow bigger. It lays one to three eggs (usually one), which are whitish with brown markings.
It has hybridized naturally with the red-shouldered hawk (Buteo lineatus) in Sonoma County, California, USA.[2] This natural hybridization between different genera of hawks is rare.
Feeding
It feeds mainly on crabs (especially land crabs) and crayfish, but will also take small vertebrates (such as fish, frogs, turtle hatchlings, lizards, snakes and small, young or injured birds and mammals), carrion (in form of dead fish) and eggs.[3][4][5] The common black hawk also supplements its diet with a variety of insects, including grasshoppers, caterpillars and wasp larvae.[3][4][6] This species is often seen soaring, with occasional lazy flaps, and has a talon-touching aerial courtship display. The call is a distinctive piping Шаблон:Not a typo.
Status and conservation
The common black hawk is protected in the far north of its range (in the USA) under the Migratory Bird Treaty Act of 1918.[7]
References
Bibliography
External links
Шаблон:Commons category Шаблон:Wikispecies
- Шаблон:InternetBirdCollection
- Шаблон:Usurped from the Grenadines of Saint Vincent and the Grenadines at Шаблон:Usurped
- Шаблон:VIREO
- Шаблон:BirdLife
- Шаблон:NeotropicalBirds
- Шаблон:IUCN Map
- Шаблон:Xeno-canto species
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- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокtaxonomyне указан текст - ↑ Шаблон:Cite journal
- ↑ Перейти обратно: 3,0 3,1 Шаблон:Cite web
- ↑ Перейти обратно: 4,0 4,1 Шаблон:Cite web
- ↑ Ferguson-Lees, J. & Christie, D.A. & Franklin, K. & Mead, D. & Burton, P.. (2001). Raptors of the world. Helm Identification Guides.
- ↑ Ferguson-Lees, J. & Christie, D.A. & Franklin, K. & Mead, D. & Burton, P.. (2001). Raptors of the world. Helm Identification Guides.
- ↑ Ошибка цитирования Неверный тег
<ref>; для сносокfwsне указан текст
- Английская Википедия
- Buteogallus
- Native birds of the Southwestern United States
- Birds of Central America
- Birds of Saint Vincent and the Grenadines
- Birds of Trinidad and Tobago
- Birds of Colombia
- Birds of Ecuador
- Birds of Venezuela
- Migratory birds (Western Hemisphere)
- Birds described in 1830
- Taxa named by Ferdinand Deppe
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- Википедия
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