This blurry photograph doesn't begin to do justice to the presence of crows at dusk on the UWB campus. There are hundreds, perhaps even thousands, of them. Every single smudge you see in the sky here is a crow. The roofline seems to waver because the roof is full of crows. The noise is amazing--and, eerily, every so often it stops dead, and you find yourself walking through a completely silent murder of crows.
UPDATE (Feb. 11): One of my colleagues shot some video of the crows last night, which gives a much better sense of the situation than the photo above. You'll find his work here.