The San Remo pair have been spending a great deal of time on the towers of the Beresford Apartments at 81st and Central Park West this fall. The female has been using a window, I don’t normally see her in. The oval “window”, which is actually bricked on this side, on the north face of the north tower. This is a perch, in past years I failed to monitor. She has also been perching on a ledge on the northeast corner of the tower. So, it’s worth keeping an eye on this side of the tower, if you’re at Sparrow Rock or coming south from the reservoir on the west side.