Thanks to all who offered help. The consensus on the Bass Ponds raptor is male N. harrier, a possibility I entertained when checking my guides (which I tend to leave at home when doing a cardio walk). I've seen many harriers, even releasing one for the Raptor Center, but never one so pale and gray.
A couple of folks would consider gray morph gyrfalcon, and light variants of other look-alikes. I hope someone else spots the Puzzler in the neighborhood and confirms what it is. Linda Whyte
