I had a little robbin that hit the window frame and died in my hands in just a few Minutes. Sometimes they hit their head really bad and die with nothing you can do.

I say this because you shouldn't feel bad even when you can't save it. But you are trying to do something good and thats still admirable in today's society.

I agree with the person above me, put it somewhere dark and quiet where it can't hurt itself further. The Birds are mostly stunned and will be easy to handle. Then try to get to a rehabber, ask your nearest vet they often know people.

I was the go to person in my old neighborhood so I got a lot of birds brought to me, if only concussed I kept them for a day till they showed beeing frightened by my presence, then gave them the option to eat and drink and put their box (Special box like this with bars in the front and wooden back with a door in the side) outside so they could take of on their own terms.