My Dog gOt into the duck pen today at attacked one of my ducks. Fortunately I wasn't far behind and I got there as soon as she got one in her mouth I was able to pry her off really fast, but now my duck is limping. Well he tries to walk and falls over then will just lay there. I touched his leg and he didn't pull away or try to bite me and there is no compound fracture. He just looks like he is in a lot of pain. And he can't walk what can I do?!