So about a week ago my drake got attacked my my neighbors dog and he seemed to be ok. He lost a lot of feathers in the back and on one side but no bleeding. He had a little bit of a limp but he was fine otherwise. He always fights with other mallards that come in our yard which made the limp a little worse. He has been locked in his coup for about 3 days but the limp seems to be getting worse. He falls over and has a lot of trouble getting up. I checked his legs and they look perfectly normal. For about a month i have noticed that he walked a little funny but ever since the dog attack its been getting worse. Does anyone know what could be causing this and if its fatal. Thanks