Ключевые слова: anatidae, animal, animals, anseriformes, avifauna, beak, bird, birds, birdwatching, canus, common gull, cygnet, cygnus, cygnus olor, duck, feather, feathers, float, fly, larus, mew gull, mute swan, nature, ornithology, pond, salty estuary, seabird, seagull, swan, swans, swim, waterfowl, white feather, wild, wild duck, wildlife, wing, wings, winter, yellow beak,