My Silkie rooster has done that same, weird head banging thing for years. He started it a few days after I brought him home, while establishing his place in the flock he took a pretty hard peck to the head from an older hen. Then the head wobbling started. I've supplemented him with vitamin E and selenium in the past, and while it did help, it never completely resolved the situation. He still does it, not as pronounced as before, but I still notice it every now and then.
Other than looking odd, its never really affected him an any other way. He still mates with and protects his hens, he just gets in his own little groove for a bit and has to rock out until it passes.
The head wobbling seems to be more of an issue with birds that have a vaulted skull (where the skull doesn't completely close, leaving the brain exposed under the skin and feathers). Polish and Silkies commonly have vaults.
Good luck with him, my boy is going on 6 years old. So, theres hope for him!
Other than looking odd, its never really affected him an any other way. He still mates with and protects his hens, he just gets in his own little groove for a bit and has to rock out until it passes.
The head wobbling seems to be more of an issue with birds that have a vaulted skull (where the skull doesn't completely close, leaving the brain exposed under the skin and feathers). Polish and Silkies commonly have vaults.
Good luck with him, my boy is going on 6 years old. So, theres hope for him!