Thayer's Gull (thayeri)

(last update: January 22, 2013)

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

Thayer's Gull 1st cycle (2CY), February 09 2013, Whiting, Indiana. Picture: Amar Ayyash.

Amar's blog.

Juvenile plumage. Note pale window on inner primaries which continue to the inner webs of the outer primaries.