Do cuckoos belong to nursery rhymes?

Bugu belongs to nursery rhymes. The cuckoo is a German children's song, with four or three beats and a big mode. The song begins with imitating the tone of cuckoo's cry, with binary notes and quarter notes appearing alternately, and the progressive melody gives people a smooth, pleasant, beautiful and calm feeling. When playing clarinet, every note should be spit out. Please pay attention to the ventilation mark, and the long note will be played for a long time.