Adult black-legged kittiwake (Rissa tridactyla) in aerial combat against another kittiwake near Alexander Island, Russia, Eurasia

rissa tridactyla aerial combat birds alexander island russia eurasia seabirds wildlife nature avian flight aggression behavior coastal marine competition ecology environment fauna birdwatching ornithology natural habitat cliffs ocean skirmish wings feathers predators landscape action endemic arctic breeding summer lagoon mating chirping flight patterns species diversity migration territory natural world biomes rocky terrain soaring aquatic hunting duo seasonal