Nisaetus

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Nisaetus, the crested hawk-eagles, is a genus of raptor in the subfamily Aquilinae, found mainly in tropical Asia. They were earlier placed within the genus Spizaetus but molecular studies show that the Old World representatives of that genus are closer to the genus Ictinaetus than to the New World Spizaetus (in the stricter sense). They are slender-bodied, medium-sized hawk-eagles with rounded wings, long feathered legs, barred wings, crests and usually adapted to forest habitats.

Taxonomy and species

These Old World species were formerly placed in the genus Spizaetus. They were moved to the resurrected genus Nisaetus based on the results of molecular genetic studies published in 2005 and 2007.[1][2][3] The genus Nisaetus had been introduced in 1836 by the English naturalist Brian Houghton Hodgson with the mountain hawk-eagle as the type species.[4] The genus name Nisaetus combines the Medieval Latin nisus for a sparrowhawk with the Ancient Greek aetos meaning "eagle".[5] The genus contains ten species.[6]

Image Scientific name Common Name Distribution
File:Nisaetus kelaarti (Thattekad, Kerala).jpg Nisaetus kelaarti (Legge, 1878) Legge's hawk-eagle southern India to Sri Lanka
File:Wallace's Hawk-eagle (Nisaetus nanus) (8067762642).jpg Nisaetus nanus Wallace, 1868[7] Wallace's hawk-eagle Brunei, Indonesia, Malaysia, Myanmar, and Thailand
File:Nisaetus nipalensis.jpg Nisaetus nipalensis (Hodgson, 1836)[8] Mountain hawk-eagle India, Nepal to Thailand, Taiwan and Japan
File:Nisaetus alboniger -Jurong Bird Park, Singapore-6a.jpg Nisaetus alboniger (Blyth, 1845)[9] Blyth's hawk-eagle Malay Peninsula, Singapore, Sumatra and Borneo
File:ELJA.jpg Nisaetus bartelsi Stresemann, 1924[10] Javan hawk-eagle Java
File:Sulawesi-hawk eagle.jpg Nisaetus lanceolatus Temminck & Schlegel, 1844[11] Sulawesi hawk-eagle Sulawesi and its satellite islands of Buton, Muna, Banggai and Sula Islands
File:Pinskers hawk eagle 2.jpg Nisaetus pinskeri Preleuthner and Gamauf, 1998 Pinsker's hawk-eagle Leyte, Samar, Negros and Mindanao in the Philippines
File:Nisaetus philippensis.jpg Nisaetus philippensis Gould, 1863[12] Philippine hawk-eagle Philippines
File:Crested hawk eagle SOP.jpg Nisaetus cirrhatus (Gmelin, 1788)[13] Changeable hawk-eagle India and Sri Lanka, and from the southeast rim of the Himalaya across Southeast Asia to Indonesia and the Philippines
File:Lppe-01.jpg Nisaetus floris (E. Hartert, 1898)[14] Flores hawk-eagle Flores, Lombok and Sumbawa in the Lesser Sundas

References

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