Cuckoo, cuckoo... (softly in background, repeated) What do you do? In april, I open my bill. In may, i sing night and day. In june, i change my tune. In july, far, far i fly. in august, away~~~~~~ I must... Cuckoo, cuckoo... (softly in background, repeated) What do you do? In april, i open my bill. In may, i sing night and day. In june, i change my tune. In july, far, far i fly. In august, away~~~~~~ I must... Cuckoo, cuckoo... (softly in background, repeated)