Can't hear a connection with Rockin' Robin, Azzizi -- but the children's rhyme sounds similiar. I used "Rockin' Robin" in a musical a while back with little kids dressed as birds. I often sing "Mocking Bird Hill" in nursing homes.

Interestingly though -- if you take "Mocking Bird Hill" out of waltz time and turn it into a rock number using the "Rockin' Robin" tune you might get a strange hybrid. You'd have to do away with the fake-yodel/waltz though. Hmmmmm