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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).
The changeable hawk-eagle (Nisaetus cirrhatus) or crested hawk-eagle is a large bird of prey species of the family Accipitridae.More informal or antiquated English common names include the marsh hawk-eagle or Indian crested hawk-eagle. [3]
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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 2008 study based on the geographic isolation and differences in call suggested that this be treated as a full species, Nisaetus kelaarti. [2] When all standard measurements are considered, Legge's hawk-eagles average about 5-10% smaller than mountain hawk eagles, although Legge's tail length is slightly greater on average.
The Flores hawk-eagle (Nisaetus floris) is a large raptor in the family Accipitridae.It is an endemic species to the Lesser Sunda Islands in Indonesia. [2] A member of the genus Nisaetus, it was considered as a subspecies of and conspecific with the changeable hawk-eagle but genetic studies have evidenced it as a legitimate species. [3]
Wallace's hawk-eagle (Nisaetus nanus) is a species of bird of prey in the family Accipitridae. It is found in Kra Isthmus , Malay Peninsula , Sumatra and Borneo . Its natural habitat is subtropical or tropical moist lowland forests .
The Javan hawk-eagle (Nisaetus bartelsi) is a medium-sized, dark brown raptor in the family Accipitridae. It is the national bird of Indonesia , where it is commonly referred to as the real-life model for the Garuda Pancasila , which is also inspired by Garuda ; a bird-like deity in Hinduism and Buddhism .