I'm not sure if this will help becusse of the age difference but We had a chick born with wry and I was so worried and had no idea what to do. Someone suggested putting save a chick in water to give her the vitamins needed. and with in a few days she was fine. Moving around and neck is back to normal.
Get some poultry vitamins containing vitamin E, B1 thiamine, to put in the water. Give him some chopped egg, and try adding some water to his feed, then hold him to help him eat. Using a bowl and holding him in a towel may help. Selenium is also important in wry neck injuries, and can be found in egg, most meats, tuna, salmon, and nuts or seeds. Good luck, and hopefully he will recover from his injury.
Thanks. He is taking the vitamin D3 & E without any problems & will occasionally hold his head & neck correctly. I'll try to feed him some eggs & food, so far he has just had the vitamins & some water since I brought him in last night. I can also make some tuna salad & give him the tuna water! All I have on hand is chick probiotics, I'll have to pick up some save - a-chick & look for the B1 & thiamine. I just sold 4 extra roosters ( a cross with him & an EE hen) now I wish I still had 1 of them in case he doesn't make it.