That inspired me to post two helpful links that give some suggestions to Land O’Lakes area homeowners on how to stop this. For most, some of these suggests may not be very practical but may supply some ideas all the same.
http://eartheasy.com/blog/2010/02/9-ways-to-help-birds-avoid-window-collisions/
http://www.birdwatchersdigest.com/bwdsite/learn/top10/windowstrikes.php