So glad BYC is here to help me. I have a 3 week old silkie chick that, every few minutes or so, does a strange head wobble. The way I describe it is like when you spin around, get dizzy, stop and try to focus on something. It get disoriented for a few seconds and then is fine, eating and drinking and running around crazy with the other chicks. My best guess is it's something neurological, I got these chicks at a few days old and they have never experienced any trauma.