My muscovy drakes fought earlier today and one of them has bloody feathers. Will he be safe from bugs at night?

We keep him in his own cage at night and I m just worried bugs will crawl on him thinking he s dead or something and try to eat him. Will he be safe or do I have to check in on him through the night? I cant give him a bath. He s a meanie and when he gets ya, he gets ya good! Please help me out!