Hi. I have a 3 yr, old Silkie rooster (Mickey) who was recently badly beat-up on the head by an young 8 mo. old rooster (I suspect because not enough hens). The young rooster has a nice new home and I nursed Mickey back to health. After a few days, he made a great recovery, acting like a normal rooster, head feathers growing back. He's been doing great....until yesterday, when I noticed he wasn't acting right. He holds his head down with his rear up in the air (see attached photo), has labored breathing and shakes his head quite a bit. Any one know what's wrong and what I need to do to get him right? Thanks so much.