Side to side circular motion head bobbin???

by Amira
(Brier, Wa)

Rudy scratching head with millit.

Rudy scratching head with millit.

Hello, I recently rescued and Indian Ring neck about 3 years of age. He is a sweet bird.He will step up, but does not like to be touched. If I slowly try to approach him with my other hand when trying to hold him he will take his foot and make a sign language sign by rubbing his beak as if to say dont touch. At times he does this head wobble circular thing. Reminds me of Stevie Wonder. What does that mean???