Thayer's Gull (thayeri)

(last update: January 22, 2013)

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

Thayer's Gull sub-adult, December 16 2013, Lake County, IL. Picture: Amar Ayyash.

Visit: Amar's blog for many more images!

Near-adult with some black in the tail and relatively small primary tips. Dark iris with much speckling (50-75%).