Thayer's Gull (thayeri)

(last update: January 22, 2013)

Coordinators:
Amar Ayyash (USA)
Mars Muusse (Netherlands)

Thayer's Gull adult, February 26 2012, Lake County, IL. Picture: Amar Ayyash.

Visit: Amar's blog for many more images!

With thayeri pattern on P10 & P9 (hardly any black on innerwebs of P9 and P10) and no sub-terminal black on P5.