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) 2nd cycle (2CY), July 12 2004, Chukotka, Russian Federation. Picture: Tuomo Jaakkonen.

Active complete moult, moulting to 2nd cycle. Most coverts and tertials old juvenile, worn and bleached to whitish. Old 2nd gen scaps also bleached. New MC growing in, tips just visible. Old juvenile tail, outer primaries and secondaries bleached. Dark iris and dark bill.