Brown skua

The brown skua , also known as the Antarctic skua, subantarctic skua, southern great skua, southern skua, or hākoakoa , is a large seabird that breeds in the subantarctic and Antarctic zones and moves further north when not breeding. Its taxonomy is highly complex and a matter of dispute, with some splitting it into two or three species: Falkland skua , Tristan skua , and subantarctic skua . To further confuse, it hybridizes with both the south polar and Chilean skuas, and the entire group has been considered to be a subspecies of the great skua, a species otherwise restricted to the Northern Hemisphere.