I’m so sorry. It’s really difficult to know the right thing to do. After reading through all the posts she seemed like she was making positive gains. We once had a rooster that was severely attacked.by a fox. We had a vet that stitched him up. It took a long time to heal and he had a severe limp. His keel never grew skin but he lived for another year and a half. He was even able to go back with his flock. He probably suffered quite a bit and I was prepared to euthanize him, but the vet thought we could tale a chance and save him. My point, after this lengthy post, is that you never know how it will turn out. So good of you to try.