NOT BIGFOOT. WORSE. A local's dispatch from the strangest corner of Dutchess County I've lived in this valley long enough to know a few things for certain: the leaves turn in mid-October, the Thruway will always be under construction, and somewhere between the Taconics and the Catskills, there is always — always — a Bigfoot story developing. This week's installment comes out of Pine Plains, and I'll be honest with you: I expected the usual blurry-shape-in-the-woods routine. W