That just gives them a target. They can’t see the window. This is a real problem in some cities. AFAIK no one has found a real solution other than frosting the windows, but then humans can’t see through the windows and get irritated.
1 point
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It’s funny, I went to visit a place and the person who lived there was starting to get their life in order, so they cleaned the window. I knew this because while I was there I heard a THUD and there was a giant streak of bird shit trailing down the window from the impact point.