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) 1CY JU053 August 29 2014, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

Bird ringed as pullus on June 21 2014 at Merra, Lindesnes, Vest-Agder, Norway (58°01'31"N 007°18'15"E).

Moulting single feathers in upper scapular region, otherwise fresh juvenile.

History:
21.08 2014 - Maasvlakte, Slufterstrand, Zuid-Holland, The Netherlands
29.08 2014 - Boulogne-sur-Mer, Pas-de-Calais, France