From where I sit, I can see the roof of another large hospital. I'm looking at the roof of the loading dock specifically, and it looks like it's about 3 stories high.
Right now there are two pigeons sitting there, feeding and preening each other. It's really sweet. Normally I look at pigeons and think "evolutionary marvel, but bird that eats trash" and don't think of them as engaging in activities like preening and feeding each other, so I have to say, not only is it sweet, but it's also fascinating.
I am off to NYC this weekend. Land of pigeons.