Thayer's Gull (thayeri)

(last update: January 22, 2013)

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

Thayer's Gull adult, February 16 2014, BP Whiting refinery, IN. Picture: Maarten van Kleinwee.

Visit: Maarten's blog for many more images!

Thayeri pattern on P9, and only black on outerweb of P5. Dark iris.