Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)
Coordinators:
Jean-Michel Sauvage (France)
Morten Helberg (Norway)
Nils Helge Lorentzen (Norway)
Mars Muusse (Netherlands)

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Great Black-backed Gull (Larus marinus) DKC 3076640 2cy: January 08 2009, IJmuiden, the Netherlands.

Most of the scapulars replaced for 2nd gen feathers. Tertials, tail, wing-coverts and rear lowest scapulars still juvenile. Central median coverts missing.