I have not had one of my chickens with a broken wing but I did find a baby bird on the ground with a broken wing. I splinted its wing with two sticks and wrapped it with duct tape. I was told it wouldn't work but I put it in a bird cage for a short time and it seemed to move around ok. This was about 3 or 4 weeks later. I took the splint off and kept it in the cage for about a week after and turned it loose in the pen. I figured if it could fly out it was well. It flew out of the pen and hung around for a few days and then I didn't see it anymore. Just goes to show people who know everything don't always. I also had a chicken with a broken leg. Splinted it and it turned out to be one of my best layers.