We have a cardinal that EVERY FUGGIN YEAR attacks his reflection in a few of our windows! I mean he goes at it ALL freakin day long till he gets tired,THEN the little dumb retard will perch his ASS on a nearby tree to get a rest, then go right back at it. He mostly starts early in the morning around 7ish. One time I caught him pecking the side mirrors of my truck. He would go from one side to the next. I caught him in the process and videoed him for a couple of minutes. I went out afterwards and he had peck marks all over both mirrors and shit all over both doors. We tried everything but killing him as he is the state bird and is protected. He eventually leaves BUT he'll be back!