American Herring Gull (smithsonianus)

(last update: October 30, 2015)
Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

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Slaty-backed Gull (schistisagus) 1st cycle (1CY), October 13 2012, Nemuro, Hokkaido, Japan. Picture: Shiroto.

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

Extensive dark on tail, hefty bill, head shape and small eye typical for this taxon. In this bird, widely spaced undertail covert barring and more than average barring in juvenile tertials and wing-coverts may be an indication of Vega Gull influences.