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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American Herring Gull (smithsonianus) pre-basic moult (2CY), July 10 2016, Stratford, CT. Picture: Donna Caporaso.

In complete moult: P6/P9. Advanced bird, moult gap in GC already closed.