"I don't know but I've been told / Eskimo pussy is mighty cold." C'mon, Davey, spit it out!
ROFL!
Never heard that one. I love it.
The only birdie one I can think of is:
Little yellow birdie with a little yellow bill/ Landed on my window sill/ Lured him in with a piece of bread/ Then I squashed his tiny f*****g head!