A reader writes:

How to stop a pesky robin from crashing in to our picture window every few seconds for a month.  

Nothing worked except hanging strips of plastic bag outside of window so the air moved them.  I tried everything else.  

Hopefully, this year we won't be visited, but it happened for two straight years now.

I even got a plastic owl, and when that didn't work, I drew a large, nasty-looking bird of prey picture and hung it inside of my window thinking it would scare the robin away.

Anyone have an idea?