I know this is an older thread, but one of our Rhodies just lost the use of her leg yesterday after something scared them into flying out from under our deck. She is acting the same as yours was, eating, drinking, but barely moving much. She gets up, but can only hop about a foot before laying back down. we can't feel anything out of place or find any sign of injury. Did your chicken ever get well? Was it just a sprain that healed after a few days? I would be grateful for an update as our little Cherry was our first layer and is the most quiet and sweet of our flock.