Ouch, that must've hurt!

Yesterday I heard a loud 'thump' against the kitchen window. It was obvious that a bird had hit it. I went outside to see if the bird was still there, and sure enough it was. It was this robin, quite stunned.

It rested on the ground for the longest time. After taking the photos, I kept an eye on it from inside the house. I was hoping no cats would find it before it recovered. One did walk by, but didn't even notice it. Eventually the robin perked up and hopped away to an evergreen tree, and that's the last I saw of it. I'm assuming it's fine now. Hopefully it learned a lesson. Now if it would just come back and clean off the mess it left on my window!