Birds out my window

So in my new office (which is huge I might just add) there are these stupid birds. The office windows are mirrored glass so they think the reflections are other tress to explore so very frequently they slam into my window. In the late afternoon the sun shines right in my window so I close the blinds. But this morning they are open and the birds are jumping all over this fence right outside. One bird must be going crazy because he (or she) keeps jumping off the fence and squaking while it tries to fly into my window. The first time it happened it was a little shocking. But now for the past ten minutes all I can do is watch the birds. The funny thing is that I think they are watching me back.