Adult black guillemot (Cepphus grylle) at breeding site on Alexander Island, Franz Josef Land, Russia, Arctic Ocean, Eurasia

black guillemot cepphus grylle alexander island arctic ocean eurasia breeding site flight wildlife bird marine birds arctic fauna nesting rocky habitat sea birds natural behavior avian red feet cold climate north animal behavior biodiversity ecology conservation ornithology avifauna animal kingdom habitat migratory birds coastal ecosystem breeding season wildlife observation nature endangered species biology ecosystems nesting sites arctic wildlife winter migration exploration outdoor natural world vibrant colors wings birdwatching remote location arctic regions habitats animal life cliffs