I have a 4 year old mixed silkie rooster. We have noticed that he is sleeping in one of the nesting boxes instead of roosting as he normally does. When he goes to get up he stumbles and falls over as if he has lost his balance. We have checked him over and he doesn't seem to have any physical issues. When we pushe him down to a sitting position he does not fight us and can get up with no problem. He is able to flog me numerous times, and I mean numerous, throughout the day with no problem. However when he goes to flog he does sometimes land on his head, back, flips over, every once in a while he lands on his feet. He has no problem walking or running. Any suggestions regarding his balance issue?