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) JYA88 1cy: November 07 2013, IJmuiden, the Netherlands. Picture: Lars Buckx.

Probably ringed as pullus in 2013 in Denmark.

US: 75-99%, LS: 50-75%, TOT SCAPS: 75-99%. Tertials and coverts juvenile.