Midday: At lunchtime, I found this bird on the sidewalk outside our building. One of our neighbors, several stories up, called down from her open window to say that he had just collided with her window when it was shut. (For the record, our building is pre-war, and has modestly sized windows, not large plate-glass ones.) She asked if the bird was dead, and I had to tell her that he seemed to be. By coincidence, he’s a bay-breasted warbler, like the one I couldn’t get a good photograph of this morning.