Today is the fourth day that an orange breasted Robin has been repeatedly flying up against the glass of my windows. I've tried both yelling and a water hose but the bird keeps coming back. The first two days it was raining; the bird would fly up against the glass of one of three large window about every 15 seconds. There were foot pattern and body patterns all over the glass. Today, the fourth day, the repetition rate is much lower.
Any suggestions about how to discourage this activity would be appreciated.
Ben