Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)

Great Black-backed Gull (Larus marinus) JA725 September 2009 & October 2012, Boulogne sur Mer, France (50.44 N - 01.35 E). 
Picture Jean-Michel Sauvage.

Bird ringed as pullus on 25 June 2009 at Ryvingen, Karmøy, Rogaland, Norway (59°16'45"N 005°09'05"E).

History:
04.09 2009 Boulogne-sur-Mer, Pas-de-Calais, France 50°43'40"N 001°35'16"E
21.09 2009 Boulogne-sur-Mer, Pas-de-Calais, France 50°43'40"N 001°35'16"E
11.11 2009 Boulogne-sur-Mer, Pas-de-Calais, France 50°43'40"N 001°35'16"E
05.12 2009 Bassin de la Liane, Outreau, Pas-de-Calais, France 50°42'21"N 001°36'33"E
06.05 2010 Calais Port, Pas-de-Calais, France 50°57'38"N 001°51'43"E
21.07 2010 Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E
12.08 2010 Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E
08.11 2010 Boulogne-sur-Mer harbour, Pas-de-Calais, France 50°43'34"N 001°35'04"E
30.01 2012 Boulogne-sur-Mer harbour, Pas-de-Calais, France
18.10 2012 Boulogne-sur-Mer harbour, Pas-de-Calais, France

below: 1cy marinus JA725 September 04 2009, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

Juvenile plumage.

below: 4cy marinus JA725 October 18 2012, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P7/P10.