Changeable hawk-eagle

The changeable hawk-eagle, Nisaetus cirrhatus, also called the crested hawk-eagle, is a large bird of prey in the family Accipitridae, native to the Indian subcontinent and Southeast Asia, including the Garhwal Himalaya, Assam, southern Nepal, Bhutan, Sri Lanka, Myanmar, Thailand, Malaysia, Laos, Vietnam, Cambodia, parts of Indonesia, and the Philippines. It was originally placed in the genus Spizaetus but was moved to Nisaetus after molecular studies showed the old genus grouped unrelated Old World and New World hawk-eagles together. Its common name reflects the wide variation in its plumage, which ranges from pale to dark and changes with molt and age, and among its genus it is the most widely distributed, adaptable, and abundant species, feeding opportunistically on birds, mammals, and reptiles. The species is assessed as Least Concern by the IUCN. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/