Notes about birds, birding and travel from the Pioneer Valley in Western Massachusetts.
Monday, February 23, 2009
MA - adult THAYER'S - Barton Cove - 02/23
Thayer's Gull (center)- adult found late (17:35hrs), unfortunately after all the local birders had left having seen the Slaty-backed Gull. The bird was bathing when I first noticed the rather white looking underwings, otherwise I might have passed over it as an American Herring Gull. However, clearly a smaller bird with a more petite shape, shorter reddish legs and medium-dark eye. In this light, the upperpart tone was virtually identical to American Herring Gull.