Ключевые слова: action, adult, animals, asia, asian, birds, cranes, crown, crowned, dance, east asian crane, fauna, field, fight, flapping, fly up, group, grus, grus japonensis, hokkaido, japan, japanese, japonensis, jump, large east asian crane, lek, manchurian, marriage, mating, natural, natural habitat, nature, period, red, red crowned crane, redcrowned crane, ritual, seasons, singing, snow, spread your wings, spreading, white, wild, wild animals, wild life, wilderness, wildlife, wings, winter,