Earlier today I heard a bang on our front door and found my car had caught a bird that flew into the door. It looks to be an indigo bunting. My cat spat it out and it was still alive and has no visible bleeding wounds. The only thing is it's right wing is injured. I'm not sure if it is broken, sprained, badly bruised, etc. I've rescued birds in the past but I'm not anything of a bird expert, so I was hoping for some input on what I can do to help this poor little guy? It has jumped out of the box a couple times and tried to fly off but can't because of its wing. Any help is appreciated.