Lesser Black-backed Gull - adult L.f. graellsii with Ring-billed and American Herring Gulls, Barton Cove, Franklin Co., MA. December 19th, 2009.
Lesser Black-backed Gull (adult L.f. graellsii) with American Herring Gulls, Barton Cove, Franklin Co., MA. December 18th, 2009.
Despite a few icy blasts from the North that left Barton Cove almost completely frozen by 12/19, the number of large gulls at Turner's Falls hasn't changed much for a couple of weeks now. Usually less than 200 large gulls come in to roost or pre-roost gatherings. What appears to be the same adult Lesser Black-backed Gull and the same first-cycle Kumlien's Gull have featured on most of the evenings that I've checked. Both were present on 12/19.