Bob Arnold (Best known as 'Tom Forrest' for many years in BBC Radio's 'The Archers') recorded a 78 of a Cotswold 'Mallard' back in the 40s and (I believe) reprised it many years later on a vinyl album.

His lyric went something like:

Oh why have I yet?
What have I yet?
I've yet the toe of me mallard,
Nib-a-toe, toe nibbins'n all,
Oh why have I yet of me mallard-e-o,
So good it was, me mallard.