Thayer's Gull (thayeri)(last update: January 22, 2013) |
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Thayer's Gull adult, December 07 2011, Duluth, Minnesota, US. Picture: Karl Bardon.Visit: Karl's Pbase pages. Much black in wing tip. Faint broken band on P5 and complete sub-terminal band on P10. Innner web of P10 with much black (broad medial band). Thayeri pattern on P9 combined with broad sub-terminal band. Medial band on P9 continues on inner web on right wing, and still it completely covers outer web at the mirror. Bird probably best matches option Plate 3-b. (ventral) |