The Osprey (Panion haliaetus), also known colloquially as seahawk, fish hawk or fish eagle, is a diurnal, fish-eating bird of prey. It is a large raptor, reaching 60 centimetres (24 in) in length with a 1.8 metre (6 ft) wingspan. It is brown on the upperparts and predominantly whitish on the head and underparts, with a brownish eyepatch and wings.