One of our hens (5 years old) has an injury of some type, may have happened jumping down off the roost or mounted by our large rooster. She seems to be able to stand upright on both legs, but she isn't able to maneuver her right leg, she just pushes it in front of her and hops on the other leg. Any suggestions on how to determine the type of injury (broken or dislocated leg or hip) without taking her in to an avian specialist? Also, any suggestions on rehabilitation? I've moved her into a large kennel to limit her movement.