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The changeable hawk-eagle is a largish but slender eagle. They fall near the middle of sizes among the currently accepted species in the genus Nisaetus. As in most birds of prey, females are larger than males with an average overall size difference of 7% but this can individually range to an 18-22% difference, with island races apparently ...
Immature, Darién National Park This is a medium-to-large sized species of raptor but a fairly small eagle. [6] [15] In the ornate hawk-eagle, the sexes are similar in appearance and overlap in size but like most birds of prey do show reverse sexual dimorphism, in which females outsize males to the contrary of most non-raptorial birds.
The genus Hieraaetus was introduced in 1844 by the German naturalist Johann Jakob Kaup with the booted eagle as the type species. [4] [5] The name combines the Ancient Greek hierax meaning "hawk" with aetos meaning "eagle".
At one time largish hawk-eagles found in Sri Lanka and southwestern India was deemed to be part of the mountain hawk-eagle species under the subspecies N. n. kelaarti. A 2008 study based on the geographic isolation and differences in call suggest that this be treated as a full species, Nisaetus kelaarti, Legge's hawk-eagle.
Eagle is the common name for the golden eagle, bald eagle, and other birds of prey in the family of the Accipitridae. Eagles belong to several groups of genera , some of which are closely related. True eagles comprise the genus Aquila .
Legge's hawk-eagle is a medium-sized eagle and fairly large-sized raptor. The typical adult has brown upperparts and pale underparts, with barring on the undersides of the flight feathers and tail. The breast and belly are heavily streaked. The wings are broad with a curved trailing edge, and are held in a shallow V in flight.
The African hawk-eagle is powerfully built and hunts small to medium-sized mammals and birds predominantly, occasionally taking reptiles and other prey as well. [4] The call is a shrill kluu-kluu-kluu. [5] The African hawk-eagle is considered a fairly stable species and a species of Least Concern per the IUCN. [1]
Bonelli's eagle (Aquila fasciata) is a large bird of prey. The common name of the bird commemorates the Italian ornithologist and collector Franco Andrea Bonelli. Bonelli is credited with gathering the type specimen, most likely from an exploration of Sardinia. [3] [4] Some antiquated texts also refer to this species as the crestless hawk-eagle ...