The Mindanao Wrinkled Hornbills (Aceros leucocephalus), also known as the Writhed Hornbill, is endemic to humid forests on the Philippine islands of Mindanao, Dinagat and Camiguin Sur.
This hornbill was formerly considered a subspecies of the Rufous-headed Hornbill, however, unlike that species, both sexes of the Mindanao Wrinkled Hornbill have orange-red throat and periocular skin (= the skin around the eyes).
This species is threatened by habitat destruction and hunting.
