Nobody has mentioned one of the most important things about this song - namely that it's great fun to sing. Some songs just feel good in your mouth, and this is one of them.

So thanks for the words, Q. Now I can sing it longer.

By the way, I think 'bitty' is an adverb. It modifies the adjective 'little' so it must be.

Poppagator, I diagrammed sentences too, and I wasn't even Catholic.