Went out to the coop at 6 a. m. it was raining to check on everybody. We noticed one of our 6 month old chickens laying there with apparent broken neck. It was sideways, the chicken can walk I guess but neck is sideways. This happened to another one about a month ago. What could cause this? We do have other hens, our Red Stars are aggresive towards them, especially over food, which they get more than enough . Do other chickens go to this extreme? What should we do? Can he be saved?