I have a male cardinal that is attacking his reflection in one of my bedroom windows. I have tried leaving the blind closed and taping ribbon to the glass to stop him, but so far it hasn't worked. Would any of you have a picture of a soaring hawk that I could use to scare him off? I tried a black silhouette once from Birds and Blooms magazine but that one didn't help with my kamikaze birds! I only have pictures of hawks sitting in my tree... Not sure if that would scare him off... Thanks