Valentin Dmitrievich Ivanov. Tale of ancient years (№ 415039)

You need to know the word. This is a cherished word at dawn, after the first spring thunderstorm, once, only once in its life a swan speaks to the winch. The wild goose also knows this right word. Hearing, the winch repeats the word and falls in love with the swan for life. That is why both swans and geese get married so well.