Ключевые слова: adult, animal, aquatic, beautiful, beauty, bird, bird in flight, bird photo, bird photography, birds, birds in flight, birdwatching, black tern, chlidonias niger, common, environment, europe, fish, fishing, flight, flights, flying, germany, habitat, hunting, insects, lake, migratory, migratory birds, natural, naturally, outdoor, outdoors, outside, river, sea, sea bird, seabird, sky, speed, sterna, swamp, swift, tern, terns, water, wetland, wild, wildlife, wings,