I drove down to Washington today because I had an afternoon meeting in the suburbs. When I was just two blocks from my office, sitting at a light, a crow flew across the street about ten feet in front of me. When it was right in front of my car it dropped one of its large, primary wing feathers. The feather spiraled lazily down the street, spinning. On one side it looked all black, but on the other I could clearly see the white central rib, black alternating with black and white as it turned.
I thought, if I were a Roman I would turn around and go back to bed.