Poughkeepsie lies under the southbound airliner routes to the NYC airports, so we often see airplanes high overhead. With a few inches of snow on the ground, a sunny day turns them brilliant white against a blue sky:
Feeding “Poughkeepsie NY” into FlightAware produces a map centered over us with (in this case) two candidates, one of which was Air Canada Flight 706, an Embraer ERJ-190. The obvious search produces pictures confirming the ID.
Air Canada’s current livery shows white paint on the bottom, but plain aluminum bodies shine brilliantly, too.
Back when I used to fly, light snow highlighted the networks of stone walls around all the old farms across the Northeast, from back when this area was NYC’s breadbasket. Those days are gone, but the stones remain where those farmers hauled them out of the fields.