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)

Great Black-backed Gull (Larus marinus) J9RJ 2008-2009-2010, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

Bird ringed as pullus at Mandal, Vest-Agder, Norway, on June 18 2006.

18.06 2006Ytre Hattholmen, Mandal, Vest-Agder, Norway 58°00'09"N 007°26'49"E
01.08 2007Le Portel, Pas-de-Calais, France 50°43'10"N 001°34'38"E
12.08 2007Le Portel, Pas-de-Calais, France
11.09 2007Le Portel, Pas-de-Calais, France
13.09 2007Le Portel, Pas-de-Calais, France
20.09 2007Boulogne-sur-Mer, Pas-de-Calais, France 50°43'40"N 001°35'16"E
24.10 2007Boulogne-sur-Mer, Pas-de-Calais, France
24.06 2008Le Portel, Pas-de-Calais, France 50°43'10"N 001°34'38"E
22.07 2008 Le Portel, Pas-de-Calais, Franc
01.08 2008Boulogne-sur-Mer, Pas-de-Calais, France 50°43'40"N 001°35'16"E
12.09 2008Le Portel, Pas-de-Calais, France 50°43'10"N 001°34'38"E
17.10 2008Dungeness, Kent, Great Britain 50°55'29"N 000°56'34"E
31.10 2008Le Portel beach, Pas-de-Calais, France 50°42'18"N 001°34'01"E
05.08 2009Le Portel beach, Pas-de-Calais, France
07.08 2009Le Portel beach, Pas-de-Calais, France
08.08 2009Le Portel beach, Pas-de-Calais, France
02.09 2009Boulogne-sur-Mer, Pas-de-Calais, France 50°43'40"N 001°35'16"E
10.09 2009Boulogne-sur-Mer, Pas-de-Calais, France
20.09 2009 Le Portel beach, Pas-de-Calais, France 50°42'32"N 001°34'15"E
18.10 2009Le Portel beach, Pas-de-Calais, France
04.01 2010Le Portel, Pas-de-Calais, France
31.01 2010Boulogne-sur-Mer Port, Pas-de-Calais, France 50°43'16"N 001°34'54"E
30.04 2010 Brennevinsmyra, Mandal, Vest-Agder, Norway 58°01'04"N 007°30'33"E
14.08 2010Le-Portel, Pas-de-Calais, France 50°42'00"N 001°34'00"E
28.08 2010Le Portel beach, Pas-de-Calais, France
02.09 2010Boulogne-sur-Mer, Pas-de-Calais, France 50°43'36"N 001°34'48"E

below: J9RJ 3cy: August 01 2008, Boulogne sur Mer.

P10 still old, P10 without mirror. P7 fully grown. Central tail feathers replaced, outer rectrices still old.

below: J9RJ 4cy: September 10 2009, Boulogne sur Mer.

This bird is present every autumn at Boulogne-sur-Mer. But also observed on October 17 2008 at Dungeness, Kent, GB.
Complete moult in last stage: P7 / P10. Note black on bill to age this bird.

below: J9RJ 5cy: September 02 2010, Boulogne sur Mer.

P8-P10 old.