Thayer's Gull (thayeri)

(last update: January 22, 2013)

Amar Ayyash (USA)
Mars Muusse (Netherlands)

Thayer's Gull 3rd cycle (4CY), January 01 2012, Tukwila, WA. Picture: Amar Ayyash.

Visit: Amar's blog for many more images!

Present at Mouth of Cedar River and Tukwila.

Outer primary tips very weak. Many immature markings on coverts and tertials. Fine bill may suggest female.