If you can manage to tube feed her, that would help tremendously. She's not getting enough calories to help her body heal. I'd also give her some poly vi sol without iron 3 or 4 drops twice a day. She looks like she's improving...it takes a long time to heal from something like this. It's good you're keeping her wounds moist so they can heal from the inside out. It doesn't look like infection is a problem, thankfully. If she does pull through, you may have a problem with her out in the rain, not having much upper beak to keep the rain from flowing into her mouth and going down her windpipe. I don't know if that will be an issue or not, but that's a bridge to think about crossing in a few months, not now.