I just moved a few months ago, and the couple that lived here warned us about this crazy bird that smacks into the window every day...
There is a plastic chair right up against one of the window panels outside by the downstairs kitchen. This bird stands up on the backrest and just flies up and smacks right into the window pane over and over. They told us that he has been doing this every single day for several years.
It mostly happens in the morning time, but it also happens in the afternoon and several times throughout the day.
I've seen this bird stand out on the deck right in front of the sliding doors upstairs and downstairs and try to fly into them, but it's mainly just that one spot on the right side of the downstairs kitchen window that he likes to fly into, and it's always from the same spot on the right side, never on the left or in the middle of the window.
I usually don't mind the noise, but it really bugs me when I'm woken up at 7am on a Sunday morning when I get to sleep in!
If this bird continues to wake me up on weekends, I might have to hire a hitman to put a stop to this.
Any bird psychologists on here want to tell me what the hell this bird is doing?
Here is a crappy video:
http://www.youtube.com/watch?v=ONziBLtGpF8