Adult black-legged kittiwake (Rissa tridactyla) in combat with a second kittiwake near Alexander Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia

rissa tridactyla combat birds alexander island arctic ocean wildlife nature avian conflict adult kittiwake eurasia seabirds aerial fight flight aggression species observation migration habitat rocky cliffs nesting behavior feeding natural behavior ecosystem birdwatching ornithology coastal arctic wildlife breeding flapping wings aerial display predators rivals survival behavior territory natural habitat biodiversity food competition mating courtship environment fauna ecosystems natural selection arctic ecosystem wildlife conservation animal behavior animal kingdom animal instincts ecological niche