I have.7 month kid Cayuga mix make duck with an injured ankle. It is very swollen and he is not putting much weight on it. I am sure one of my other male ducks hurt him. He is not part if the group. I have two Pekin ducks, one male and one female and one other mix 6 month old duck. I am hatching more ducks right now. I have separated French Fry from the others. Any more suggestions?