Ключевые слова: animal, animals, beak, beautiful, bird, birds, birdwatching, brown, city park, closeup, colorful, couple, drake, duck, ducks, environment, feathers, february, flock, fly, fowl, frost, green, head, hungry, lake, mallard, migration, ornithology, outdoor, outdoors, pond ice, river, russia, season, shore, swim, two, walk, water, waterbird, waterfowl, white, wild, wild animals, wild duck, wing, winter,