My younger son came home from school with a vaersion of 'The Rattlin Bog', which goes something like There's a flea on the bird, and the bird on the egg, egg on the nest ...twig, limb, branch, tree, way down in the rattlin bog. That's the extent of my knowledge, but it rang a tiny bell when I heard his incomplete version. Couldn't find it in the DT.

Regards
John