My sister just came running in holding my favorite chick (hatched today by my bantam hen) with half of his face missing and the back of his neck horrible bloody! She said yellow jackets were eating him!! He couldn't breathe, so I had my dad kill him. One of her other chicks is missing half of his face as well, but seems to be okay, or as okay as you can be with only half a face, I brought them all inside. The second chick is starting to have a reaction! What can I do?? Please help me!