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) 41P 1CY-2CY, October 2015 - October 2016, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.

Ringed as pullus on June 24 2015 at nuclear power plant of Paluel, Seine maritime, Normandie, France. Probably male.

Recoveries:
24/06/2015 - nuclear power plant of Paluel, Seine maritime, Normandie, France.
23/09/2015 - port de Boulogne sur mer, France.
05/10/2015 - port de Boulogne sur mer, France.
08/10/2015 - port de Boulogne sur mer, France.
12/10/2015 - port de Boulogne sur mer, France.
24/10/2015 - port de Boulogne sur mer, France.
01/11/2015 - Boulogne-sur-Mer Pas-de-Calais FR
07/11/2015 - Boulogne-sur-Mer Pas-de-Calais FR
11/11/2015 - port de Boulogne sur mer, France.
23/11/2015 - Boulogne-sur-Mer Pas-de-Calais FR
02/12/2015 - Boulogne-sur-Mer Pas-de-Calais FR
17/12/2015 - Boulogne-sur-Mer Pas-de-Calais FR
02/01/2016 - Boulogne-sur-Mer Pas-de-Calais FR
07/01/2016 - Boulogne-sur-Mer Pas-de-Calais FR
31/01/2016 - Boulogne-sur-Mer Pas-de-Calais FR
08/02/2016 - Boulogne-sur-Mer Pas-de-Calais FR
14/02/2016 - Boulogne-sur-Mer Pas-de-Calais FR
19/02/2016 - Boulogne-sur-Mer Pas-de-Calais FR
17/06/2016 - Wimereux Pas-de-Calais FR
???
18/10/2016 - Boulogne-sur-Mer Pas-de-Calais FR

below: Great Black-backed Gull (Larus marinus) 41P 2CY, October 18 2016, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.

Extensive partial autumn moult in inner wing-coverts and upper tertials.

below: Great Black-backed Gull (Larus marinus) 41P 1CY, November 11 2015, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.

Moult in scaps not really speeding up last month.

below: Great Black-backed Gull (Larus marinus) 41P 1CY, October 22 2015, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.

US: 75-99%, LS: 1-25%, TOT SCAPS: 25-50%.