Thayer's Gull (thayeri)

(last update: January 22, 2013)

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

Thayer's Gull 1st cycle (1CY), December 30 2011, Tukwila, WA. Picture: Amar Ayyash.

Amar's blog.

Juvenile plumage. With Glaucous-wiged Gull (left).