The day went on to produce seven more gull species; Black-legged Kittiwake (40+), Kumlien's Gull (11, including 8 adults), Lesser Black-backed and Glaucous Gull, plus American Herring, Great Black-backed and Ring-billed Gulls, recalling another outstanding day for gulls on the Outer Cape back in November 2008. A truly amazing place for birding.
Ivory Gull - Adult, Race Point Beach, Provincetown, MA. January 17th, 2010. Found by Ivan Ace and Ed Yargeau on January 14th.
Lesser Black-backed Gull (left) and adult Kumlien's Gull (right) with American Herring and Great Black-backed Gulls. Pilgrim Lake, Truro, January 17th, 2010.