Ключевые слова: anatidae, animal, animalia, anser, aves, beak, behavior, bird, birdwatching, blackness, chick, colorful, duck, family, fauna, feathered, flight, goose, goose bird, goose birds, gray, graylag, greylag, horizontal, inhuman, lake, lakes, lawn, natural, nature, orange tree, park, playfield, pond, swim, take off, top, water, waterfowl, wetland, wilderness, wildfowl, wildlife, wing, yellow,