Thayer's Gull (thayeri)

(last update: January 22, 2013)

Amar Ayyash (USA)
Mars Muusse (Netherlands)

Thayer's Gull adult, February 15 2014, North Point Marina, Winthrop Harbor, IL. Picture: Maarten van Kleinwee.

Visit: Maarten's blog for many more images!

Saturated bill and peppered iris. Thayeri pattern visible on P9 and only faint black on P5.