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) JZ923 2CY, June 29 2017, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.

Ringed as pullus on July 03 2016 at RAUNA, Farsund, Vest-Agder, Norway.
Several recoveries at Boulogne from October 2016 up to this date.

Bird in complete moult: P4/P7.