This single Dowitcher has been at the Stratford Marina for weeks, and it seems likely to be a Long-tailed Dowitcher. Its body is rounded more than most SBDOs, and its bill is quite long (cf its bill in relation to photos of addicted Greater Yellowlegs). Also, recently Frank M IDed it as LBDO because of flieldmark visible in flight.
11/14/17 Glaucous Gull, Walnut Beach. The Glaucous Gull of 11/6/17 was found earlier today (1/14/17) at the beach at Naugatuck Ave in Milford by Frank M; here are some afternoon photos: