We just got T-Rex about two weeks ago. At first I wasn't even sure he was a chicken, he looked more like a dinosaur. He wobbled when standing and had a hard time walking, so I figured maybe he was just scared being in a new place coming from who knows where. But it's been two weeks now and he won't stand up even to eat. When he does, he flaps his wings and fall backwards. I checked him for mites and injuries and he has none. So what could be wrong with him? He crows, eats like a horse and other than not being able to stand up, he seems fine.