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) JZ851 2CY, September 29 2016, Boulogne-sur-Mer, NW France. Picture Jean-Michel Sauvage.

Ringed as pullus on July 02 2015 at: GJILLERHOLMEN, Mandal, Vest-Agder, Norway.

Recoveries:
23/12/2015 à Gismerøya, Mandal, Vest-Agder, Norway
29/09/2016 à Boulogne-sur-mer "harbour" Pas-de-Calais,France

P10 still growing, at length of P6 and with obvious mirror. partial autumn moult started: GC1-2, MC2 missing, MC10 growing, 2x LLC.