My Isa Browns haven been picking on one of my Americana chickens and they went too far today! I got home and saw that "Rose" had no feathers on her back, to her tail and below. Still has her wings and head feathers but is very bloody. I put her in my dog's old crate in the garage and put a tarp around the bottom to keep some heat in better. I do have an off-brand Neosporin to put on her, but is there something more I can do? Will her feathers grow back? She obviously has food and water… is there any way I can prevent this bullying in the future? I have two more new chickens that are almost ready to introduce to the flock… I have them in a separated area in our outdoor chicken run. They are separated by chicken wire so the other chickens can still see them… I plan on introducing them sometime in the next month or so by sneaking them in the coop at night when they are all sleeping… will that work?