What to do if you find a injured bird?
Besides, how can I help an injured bird?
Poke air holes in the top of a box and put a blanket inside. Collect the bird gently and sit it in the box. Keep the bird warm inside your home and then call a wildlife rehabilitation clinic/shelter or your local veterinarian. The wildlife rehabilitation center or vet will give you instructions from there.
Also question is, what do you do if you find a bird with a broken wing?
Wrap the bird in a towel. It will help the bird stay calm, and it will also keep the bird from moving more and hurting itself. Try to protect the injured wing when you wrap the bird in the towel. Gently place the injured wing against the bird's body (not bent in a funny way) and wrap the bird snugly in the towel.
But other than that specific situation, a broken wing bone will not heal… the bird will not be able to fly… and it will starve to death, or will be killed and eaten by a predator. In many cases, the best way to heal the bird is to wrap up the wing against the bird's body, and care for the bird while the bones heal.