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) JWN95 2CY, June 29 2017, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.

Ringed as pullus on July 22 2016 at Græsholm W, Hirsholmene, Nordjylland, Denmark.
Several recoveries at Boulogne from February 2017 up to this date.

Bird in complete moult: P6/P9.