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Great Black Hawk (Buteogallus urubitinga)
[order] Falconiformes | [family] Accipitridae | [latin] Buteogallus urubitinga | [UK] Great Black Hawk | [FR] Buse urubu | [DE] Schwarzbussard | [ES] Busardo-negro Urubitinga | [IT] Poiana nera maggiore | [NL] Zwarte Arendbuizerd | [SU] Blaka-aka
Characteristics
The adult Great Black Hawk is 56 to 64cm long and weighs 1.1 kg. It has very broad wings, and is mainly black. The short tail is white with a broad black tip. The bill is black and the legs and cere are yellow.
The sexes are similar, but immature birds are dark brown above with spotting and streaks. Their underparts are buff with dark spots, and the tail has a number of black and dusky bars.
| wingspan min.: | 115 | cm | wingspan max.: | 135 | cm |
| size min.: | 56 | cm | size max.: | 64 | cm |
| incubation min.: | 37 | days | incubation max.: | 43 | days |
| fledging min.: | 0 | days | fledging max.: | 0 | days |
| broods: | 1 | | eggs min.: | 1 | |
| | | | eggs max.: | 2 | |
Click items below to expand
The Great Black Hawk is a resident breeding bird in the tropical New World, from Mexico through Central America to Peru, Trinidad and northern Argentina. It resembles the Common Black Hawk, but is larger with a different call and tail pattern. A fairly common breeding species in Suriname found in the interior savannas. Normally a solitary species living in the subtropial to tropical forest zones. Prefers dense forest galleries along rivers but also savannas with patches of trees or ever dry country with scattered trees. Can be found up to 1600 meter heights. Nests at the start of the rainy season or the end of the dry season. Nest is built of sticks on top of other nests or f.e. in a power pole. Usually one brood with a clutch size of 1 to 2 eggs of which one chicken is reared. Fledging period not exactly known but young seen begging for food on the nest seven months after hatching. The Great Black Hawk feeds mainly on reptiles, other small vertebrates and large insects, often hunted on foot. feeds also on carrion from large animals and roadkills. This species is often seen soaring above woodlands. This species has a large range, with an estimated global Extent of Occurrence of 13,000,000 km2. It has a large global population estimated to be 100,000-1,000,000 individuals (Ferguson-Lees et al. 2001). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern. Mostly sendetary, Northern population wanders southwards. article number 1 Title
PREDATION ON NESTLING BARE-THROATED TIGER-HERONS BY A GREAT BLACK-HAWK
Author(s): Susan E. Lewis and Robert M. Timm
Abstract: Little is known about the diet or hunting strategies of Great Black-Hawks (Buteogallus
urubitinga), a widely distributed but poorly known species in Central and South America.
In Panama, Wetmore (We..[more]..
Source: ORNITOWGIA NEOTROPICAL 2: 37, 1991
download full text (pdf)
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