He knocked himself out in my window. I sprinkled water on him and he got up and flew away.
You're a hero!
Could it be a Cedar Waxwing?
Nice photo of a beautiful bird. You did good, but I thought you were going to say that you gave him mouth-to-mouth, or would that be mouth-to-beak.
I used to do that. I had a big window in my living room and they were always knocking themselves out on it so I kept a little pot pie tin handy put water in it and dipped their beak in the water. They revived and went on their way. Most of them were yellow finches.