SUBREDDIT: r/Pets
TITLE: Any vets here? I need some advice about a wounded pigeon I just saved
POST: My neighbors cat had some "fun" with a random pigeon on my front yard, so I rushed away the damn cat because that poor pigeon was in a world of hurt. Its wing was clearly injured and it couldn't fly away. I caught the poor guy and now he's in my garage for the night. He looks calm now and hopefully he's not in distress anymore. I gave him water and some breadcrumbs and hopefully he'll recover tomorrow.

Right now I'm trying to think of the next steps for this poor guy. Can you help me out here? Any advice how to rehabilitate this poor bird?
TL;DR: 
neighbors cat attacked a pigeon, I rescued the bird, he's in my garage for the night, what to do next?