This morning I found a chicken on the side of the road, I think it was heading to the slaughter house and fell from the truck/crate. It has barely any feathers on it's stomach/chest. Her back end (bum) is very red and looks almost swollen. She is eating and taking water, but my concern is her back end. The blood on the chickens feathers is not from her. It must be from the other chickens that were in the crate with her. + Any suggestions or help would be great!