Best thing to is to go to JC's ABC Tune Finder and do a search--you'll find the tune offered in a variety of ways, including an abc file(opens with a simple freeware notation program--there is a download link on the site) which can be both listened to and viewed/printed out as in regular notation--more often than not, the chords are appear as well-- Here is a link to the search results for "cuckoo", which includes several different cuckoo tunes, including "The Cuckoo is a Pretty Bird" qhich is the one that I am guessing that you are after: Cuckoo search from JC's ABC Tune Finder