Put her in a cage by herself so they won't injure her again. Clean her feet with Bactine, it won't sting and hurt. Do the same with the wound on her head, just swab it gently with the Bactine sprayed on a cotton ball, same procedure with her feet.

You may also want to try taking her to an avian veterinarian if the injuries are too severe and she doesn't appear to be getting better.

Please tell me what to do. One of my birds has curled toes and the other healthy birds were mean to her and injured her. Her feet are swollen and a bit cut, and on her head she has a sore red bald spot because they tore off the feathers and who know what. How do I treat her?