I am a new chicken keeper. I came home tonight to find one of my hens has a break I. Her beak high up, the end of her beak is broken, and part of her comb is torn off. I have been gone fora few days and left my chickens with a caretaker so I have no idea what happened. They are in a coop/run which is covered in hardware cloth which has been buried 12 inches deep too. How do I treat this injury, and did another hen do this to her? Or should I be on the lookout for another varmint?