Ключевые слова: aircraft takeoff, anatidae, animalia, anser, aves, beak, behavioral, bird, birdwatching, chick, fauna, flight, flying, goose, goosebird, goosebirds, gray, graylag, greylag, horizontal, inhuman, lakes, lawn, natural, nature, orange tree, park, playing field, pond, smart, swim, top, water, waterfowl, wetland, wilderness, wildfowl, wildlife, wing,