Other Names: Pomarine Skua
Distribution: arctic coasts in summer; tropical and subtropical Southern Hemisphere coasts and shallow seas in winter.
Size: 42-50 cm in length with a 115-125 cm wingspan. Adults weigh 540-920 g.
Plumage: Two main morphs can be found: light and dark. Light-morph adults have a brown back, white breast, and dark gray flight feathers with a single streak of white going down the middle of each. The throat and neck are light yellow with a black cap on the head. Dark morph adults are mostly dark brown, but also have the white streak on the flight feathers. In breeding adults of both morphs, the two central tail feathers are much longer than the others and twisted 90 degrees. Juveniles resemble the dark morph in color uniformity, but are medium gray.