The robin in my window

Today while I was sitting surfing the net, I heard a 'thump, thump' sporadically coming from my bedroom. I went to look, and this robin was repeatedly throwing himself against my bedroom windows. He would sit in the tree outside the north window, then fly right into the window a few times. Then he'd go around the west side of the house and fly into that bedroom window.

The cats were napping on the bed. They woke, and were very interested in the whole affair.