This morning i went to do my chicken chores and found a rooster on the wrong side of the fence. When i got closer i noticed that he had a huge wound on his right thigh. He was still alive and in shock. When i picked him up to look closer half his thigh was gone! I put him out of his misery and plucked the feathers looking for more wounds. He has a few bruises on his wings but no punctures or tears. The only wound is the one on his thigh. I looks like something was eating him. I'm confused as to what did this. The fact he was still alive and has no other wounds is odd. Please help. I don't want to lose any more this way.