Pigeon with a broken wing

[MadCow]

This afternoon my girlfriend and I went out to do laundry. As we were walking through the driveway I noticed a pigeon on the icy ground. As we approached the pigeon tryed to retreat but it's left foot(?) was stuck in about 3-4 cm in the ice. I rushed to grab some warm water, it melted the ice, and the pigeon was freed. The foot looked really white for a bit though. It's been a few hours and my little friend "Birgandy" is recovering. We fed him some water using a suringe and he ate some bread. He slept for a few hours and his feet look fine now.
We let him wobble around to see if he can fly but it seems like its left wing is broken or very hurt.
I have no idea how long the pegion was there. Yesterday temperatures here in Toronto were very warm and all the ice was melted. A cold front moved in during the night and the temperatures dropped 15 degrees Celsius within three hours, making it -19. I am guessing that explains how the pigeons foot got stuck in the ice.

I need your help people, what should I do about the broken wing? Any input would be really appriciated by the pigeon.