Keep her inside so others wont peck on her. Use benadine to clean the wound and clean it daily. I'd wrap it to make sure maggots don't get in there. Ones those get in there its really hard to get them out. Make sure she continues to eat and drink. Give her about a drop maybe 2 of polyvisol and start her on antibiotic water. I've done this with my birds and things have worked well with them. Good luck...