Without pulling my copy off the shelf and running it through, it's been a while since I last watched it and don't have time to check it out right now. Off the top of my head I would say it was probably "Chick a Li Lee Lo, possibly sung by Almeda Riddle from Arkansas. If so it is from the Alan Lomax recordings he made in 1958/59 which was originally issued on the Atlantic label.

Hoot.