Ah, thát's what it was! I have to admit that I'm not very good at recognizing birds. Mostly, I was surprised to find any bird up there at all, so I took this picture. It wasn't scared, so I presume it was used to all the tourists up there.
"So I was sitting in my cubicle today, and I realized, ever since I started working, every single day of my life has been worse than the day before it. So that means that every single day that you see me, that's on the worst day of my life."
--Peter Gibbons (Office Space)