American Herring Gull (smithsonianus)

(last update: October 30, 2015)

Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

Slaty-backed Gull (schistisagus) adult, October 11 2012, Nemuro, Hokkaido, Japan. Picture: Shiroto.

Visit Shiroto's website for many more gull pictures from Japan!

Last phase of complete moult: P8 > P7. Orbital ring pink, small red gonys spot on pale yellow bill (pink base) and yellow iris with limited speckling. Broad tertial crescents and secondary tips. Upperparts grey tone about equal to graellsii Lesser Black-backed Gull. Strong pink, short-looking legs.