Recently our Rouen duck was attacked by two of our roosters. At first, I thought he maybe sprained or fractured a leg (limps) but a day later he keeps flipping over on his back and can't right himself. Could this be something nerve related? ( roosters attacked him as if they were fighting to mate w him...at back of neck) I didn't see the whole event. ..just happened to walk out and to the rescue I went. Or is there maybe another explanation for his symptoms? New at this and just want to help the little guy! Oh...he is eating, drinking and pooping fine, but cant clean or oil himself without falling over...any advice would be appreciated! Thanks so much!