The osprey, known scientifically as the genus Pandion, is the sole member of the family Pandionidae. They are birds of prey with a near-universal presence, commonly recognized as a single living species known as Pandion haliaetus, although some experts differ and acknowledge two existing species. Subspecies distinctions have been made, notably the Pandion haliaetus cristatus found along the coastlines and islands of Australia, Southeast Asia, and the Indonesian archipelago. In addition to the living species, there are two extinct ospreys known, namely Pandion homalopteron and Pandion lovensis, which were identified and named in 1976 and 1985, respectively.