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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Lesser Black-backed Gull graellsii 2CY (1st cycle), 10 April 2011, Agadir, Morocco. Picture Frode Falkenberg.

P1-P10 still present, hence complete moult not started. Post-juvenile moult on winter grounds included all scaps but also several injner wing-coverts and upper tertials. Note dark inner primaries.