Another species of raptor that seems to be joining the Peregrine, the Kestrel, and (at least in the Southwest) the Cooper’s as a city dweller is the redtail. This amazingly bold first year bird is apparently observing the habits of my sister Anita St John in her office on Beacon Hill in Boston  (Mass General Hospital, Autoimmune Diseases; 5th floor, which doubtless helps the bird’s confidence).