A fox got into my chicken run last night. Tore through the cable ties that attach the chicken wire to the frame. I woke with the racket and ran out, but one hen was already dead, one injured. Took the injured one to the vet and she had to be euthanised. The two remaining hens are in shock. They won't leave the coop (understandable); I've put water and some mealworms in there, and one ate some mealworms, the other is just standing with her eyes closed and beak open. Neither seems interested in the water. What can I do?