Crow with broken wing - Crow Rescue in Anaheim CA needed?

Hello I have a crow in my front yard with a broken wing, it's up in a tree and has some friend crows that are protecting it from cats and what not. It can not fly away and will not come down from the tree. I tried to give it bread and water in the tree but im not sure how much it has actucally eatten or drank. It has no chances as it is now, and im sure the cats would have gotten it by now if it wasn't for the other crows protecting it. I really want to help the crow so I'm hopping someone knows of a crow rescue that can save him instead of put him down. He's been there for a few days so I don't think he's going anywhere soon. Please help me, help the crow! I am located in Anaheim CA 92804. Thank you!!!!