Antarctic tern (Sterna vittata) in brash ice near the Antarctic Peninsula, Antarctica, Southern Ocean, Polar Regions

antarctic tern sterna vittata brash ice southern ocean antarctica flying bird polar regions wildlife seabird nature ice landscape avian species ocean habitat animal behavior migration natural environment winter feeding grounds crustaceans ecosystems coastal habitat ice floes marine life biodiversity wetland scenic beauty conservation birdwatching ornithology aerial view plumage behavior arctic polar fauna nesting fresh water glacial melt ecology flight migration patterns southern hemisphere antarctic peninsula tundra wind unique adaptations habitat loss observation