Thayer's Gull (thayeri)
(last update: January 22, 2013)
Thayer's Gull adult, January 01 2012, Seattle, WA. Picture: Amar Ayyash.
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Present at Mouth of Cedar River and Tukwila.
Full band on P5 and broken sub-terminal band on P10. P10 with much black on inner web. Almost thayeri pattern on P9 combined with broad sub-terminal band. Medial band on P9 continues on inner web.