Hello all! My 6 week old Golden Laced Wyandotte developed what I think is Wryneck about 2-3 weeks ago. At first I thought her feathers just weren't coming in evenly until it got worse. I started her on Poultry Nutri-drench a week ago, but haven't noticed any improvements. She eats, drinks and acts normally other than her crooked neck. Do I need to be giving her brewer's yeast or something with B vitamins as well? I'm wondering if it will it ever go away if it turns out to be from a head injury or genetics and notcaused by a vitamin deficiency? Do I need to be worried about Marek's or something else more serious? My 10 other birds the same age are completely healthy.