Adult Subantarctic Skua (Catharacta antarctica lonnbergi) on tussac at Salisbury Plain on South Georgia Island, Polar Regions

subantarctic skua tussac grass salisbury plain polar regions seabird wildlife nature avian flight environment ecosystem biodiversity coastal landscape mountains ocean habitat foraging nesting migratory animal behavior marine southern hemisphere conservation birdwatching ornithology travel adventure exploration snow grassland outdoor natural habitat south atlantic island ecology climate weather ecosystem balance fauna flora natural beauty tourist destination remote islands native species earth sciences geological features observation field studies research global biodiversity