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) 4th cycle (5CY), March 13 2010, Nemuro, Hokkaido, Japan. Picture: Shiroto.

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

Overall adult-like bird with white tail, large mirror on P10, bold primary tips and adult-like upperparts. Only feature is much black on bill. Yellow iris, pink legs, bold tertial crescents and still dark eye mask. Like adults, this bird has red gonys spot.