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The ornate hawk-eagle is a member of the booted eagle subfamily, with the signature well-feathered tarsus present on both tropical and temperate species (and shared, presumably through convergent evolution, with a pair of buteonine hawks). [4] [6] It is one of four living members of the Spizaetus species of "hawk-eagle" native to the neotropics.
Spizaetus is the typical hawk-eagle birds of prey genus found in the tropics of the Americas. It was however used to indicate a group of tropical eagles that included species occurring in southern and southeastern Asia and one representative of this genus in the rainforests of West Africa .
The black hawk-eagle is 58–70 cm (23–28 in) long and weighs about 900–1,300 grams (2-2.9 lbs). It has black plumage with varying patterns on its wings and body, and white speckling in places. It has barred wings, slightly elliptical in shape, and a long, narrow tail which is rarely fanned.
The black-and-white hawk-eagle (Spizaetus melanoleucus, formerly Spizastur melanoleucus) is a bird of prey species in the eagle and hawk family (Accipitridae). It is found throughout a large part of tropical America , from southern Mexico to northern Argentina .
The talons of this species are very large and formidable for the size of the eagle, averaging 50.9 mm (2.00 in) in 6 females and 46.4 mm (1.83 in) in 6 males along the enlarged hallux claw (their main killing apparatus), thus nearly as large as a much bigger eagle such as a golden eagle.
The mountain hawk-eagle (Nisaetus nipalensis) or Hodgson's hawk-eagle, is a large bird of prey native to Asia. The latter name is in reference to the naturalist, Brian Houghton Hodgson, who described the species after collecting one himself in the Himalayas. [4] A less widely recognized common English name is the feather-toed eagle. [5]
Golden eagle [86] Aquila chrysaetos: A minimum of 960 individuals. The most common bird species found in the La Brea tar pits. † Grinnell's hawk-eagle [87] † Spizaetus grinnelli: At least 105 individuals. A species of hawk-eagle, remains of Spizaetus grinnelli are also known from Florida. Hawk [11] [78] Buteo sp.
Blyth's hawk-eagle (Nisaetus alboniger) (earlier treated as Spizaetus) [2] is a medium-sized bird of prey. Like all eagles, it is in the family Accipitridae. It can be found in the Malay Peninsula, Singapore, Sumatra and Borneo. [3] It is a bird of open woodland, although island forms prefer a higher tree density.