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) M57 1cy: November 05 2013, Westkapelle, the Netherlands. Picture: Corstiaan Beeke.

Ringed as pullus on July 06 2013 at Saint-Marcouf, France.

US: 50-75%, LS: 0%, TOT SCAPS: 25-50%. Tertials and coverts juvenile.