Hi there! I'm very sorry to hear about your loss and about your injured bird.
I posted my article above in response to a request for it. I hope that it's of some use to you. I'm going to tell you what of the article applies. Additionall, I've very recently had experience with a broken (dislocated) and eventually amputated wing. I'll tell you what I've learned from that.
First and foremost is to set a priority list for what must be done.
The most important issues here are: the broken wing, any puncture wounds, possible internal damage, shock.
Secondary issues to handle are: providing comfort, supportive nutrition and medication, hydration.
Before I start, I do have to say that I highly recommend that the bird be taken to a qualified vet who can assess the wound, administer the correct antibiotics, and either set or cut the wing. I also must advise you that it's possible that there are other internal injuries about which you can do nothing. Brace for it, but be determined that until you KNOW of internal injuries that you'll do your best and we'll do our best to support you.
If you cannot do that, second best would be to at least notify your vet that you'll need Baytril or antibiotics immediately for an animal bite and broken bone scenario.
If that cannot be, then the rest of this might help.
First, bone injuries are a big problem. Where the bone is broken, there is a high risk of systemic infection. I would most highly recommend that the bird receive an appropriate antibiotic for that type of infection. Most over the counter antibiotics just don't do it. Baytril is really the one you want. Penicillin is good for many wounds, even most punctures or animal bites, but combined animal bites and broken bones might be too much for it. Still we'll just work with what you are willing or able to get. More about antibiotics in the article.
We need to know what type of bone break. Was it complete (the bone is broken in two clean halves). Was it more of a splintered bone (bone ends are not clean, but splintered)? Was the break at a joint, more like a dislocation? Did the bone break through the skin? Which wing bone (if you can tell)?
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Think carefully - do you feel that the wing can be put back together - the ends put together quite well -or is it a messy situation? Would an amputation be more likely?
Wing bones are pneumatic. They have air in them as that's the design of birds. If the bird's wing is amputated, an avian vet will amputate in the middle of the bone, not usually between joints. The reasoning is that the joint will continue to product joint fluid for its life, filly the recess with fluid that must be drained. A cleanly cut bone will leak air into the recess for approximately a week until it seals and then the air disappears and it no longer leaks. This sort of thing is obviously best done by a vet. There's the official disclaimer (again).
If you can however put the two ends of the bone together, and the skin is not broken, you can try fashioning a splint using materials from around the house. Popsicle sticks, paint sticks (cut to size because the wood is soft), housing (window door) shims, chopsticks, etc. In that case you would align the bone ends, pad the area with wrap gauze, place the splints in place, tape the splints to the gauze with tiny pieces of duct tape (thin and long so that there's no air impairment in the bandages), wrap this with vetwrap twice. But you must ensure that the two bone ends stay pushed together -that gets tricky. If you cannot do that, amputation might be a more clean process. There's a woman who amputated on here and I would suggest you read her thread as well and consider contacting her. I'll find that post.
It's nearly impossible to tell you what to do on little info, but this will give you an idea of what you're up against.
As for the rest of the bird, you must check every inch of her for any additional punctures. Because she was outside, it's possible that flies blew the wounds and it only takes 1 female fly to lay 300 eggs which will hatch within hours. For that reason, the bird must be kept up for at least 2 days in your particular case. Look her completely over. Any wound, clip the feathers away close to the skin near the wound's perimeter, and any that might dip into the wound. Cleanse very very thoroughly as you hope to only cleanse once and make it really count. Using hydrogen peroxide (or H2O2 and water) the first time will burn a little ,but it's intended to literally oxidize the mouth-germs to death in that wound. You follow up with the iodine/water because it kills more germs, knocks more dirt loose, and when you pat it dry (don't rinse the last iodine/water out) it leaves enough iodine to continue killing some germs. Then you will pack the wounds with neosporin ointment so that the body heat will continue to melt the ointment and continue to treat the wound.
If maggots hatch, and they might, you will vigorously clean the affected wounds again with iodine/water (not H2O2) and redress.
If you can get screw-worm wound spray from the feed store, I'd so very highly recommend it. You can top the dressed wounds with a tiny spray of that to repell flies and kill any larvae that you missed or that hatch out later. (Maggots don't all hatch at once).
If this happens, you can do this. Just clean them off and hope you never have to do it again. Then you have some chicken war stories to tell!
On setting the wing - I'd use VetWrap on the wing itself. That way you do'nt have to worry about it moving much. Then consider using a baby's T-shirt around the bird. You can pick a more appropriate size for her, it already has leg holes (the arm holes), and you can cut a hole for her "good" wing to come out of. You can more easily use Vetwrap (with it's self-adhesiveness) to make a band to secure the broken wing against her side. Use custom cut strips of duct tape to stick the VetWrap to the other VetWrap, or to make sure the end of the bandage sticks to itself.
As for the extra cloth of the t-shirt, you can poke holes in the top (on the bird's back) and make a lacing like a corset to pull it close. That will leave it open at the vent to clear droppings.
Be creative. Look around your house and ask yourself "what can I use..."
Then once you get her treated, offer food and water (which she won't accept likely). try to dribble a little electrolyte into her side of her beak. Gatorade, pedialyte, those will work in a pinch. For this type of situation I would recommend a really good vitamin/electrolyte package (like aviacharge) in her water as she likely won't be eating or drinking much. You can use other vitamin/electrolytes for poultry - just that one is the best choice.
As for food, try putting her pellets in the blender as most birds like crumbles better than pellets. And then offer them damp (with the gatorade/pediately/vitaminwater), or with boiled egg in them, or whatever you can do to tempt her to start eating and drinking.
She needs to feel safe to heal. As horrifying as this is, keeping the aura about you of calm and confidence will help her to be more calm. reassure her with your voice that you're doing everything you can. It's true.
I hope this and the article help for a start. I'm available by email or here if you have any questions at all or just need someone to say "you can do this". Or just support you.
I'm sending you and the bird prayers and well-wishes.
