I have a mini flock of 4 pullet RIR in a chicken tractor in my back yard. I came home today to find one lying on the ground looking almost dead. She is still alive as she opened her eyes (barely) when I picked her up to inspect her. I didn't see any injuries to her. There's no blood or missing feathers. Nothing that i can pinpoint what is wrong. I'm afraid she may have hurt her neck, but this is my first flock and I'm not at all experience in diagnosing what may be wrong. Any help about what it could be or what to look for to get a better idea of what's going on would be helpful. Pls help. I don't want to put her down if I can avoid it.