You can Super-Glue any torn places back together. Super-Glue is a really good, effective alternative to stitches. Just put antibiotic ointment on after glueing.
Maybe you could coat vulnerable places with Super-Glue, too?? Hmm--But maybe that would give the other birds an extra good grip to do more tearing?? You'd have to experiment.
Pine tar daubed on a wound can help it heal. It is gooey so it sticks to the wound. And other birds will veer away from getting the gooey nasty stuff on themselves.
Pine tar is sold for use on horses' hooves, but many people use it on chickens on wounds that are getting picked on.
Also, put obstacles around that can help her get away from the other birds. I wrote ideas of how to help with that at:
You might have to keep her with a fence between her & the others for a little bit, so she's separate from (so her injury can heal) but close to the others (so she doesn't get treated like a total newcomer when she's fully back with them..
Edited by SpeckledHills - 3/24/12 at 7:35pm