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) JH3C 4cy, 10cy-12cy, September & October, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

Bird ringed as pullus on June 28 2004 at Herreholmen, Lyngdal, Vest-Agder, Norway (58°02'02"N 006°57'51"E).

History:
28.06 2004 - Herreholmen, Lyngdal, Vest-Agder, Norway 58°02'02"N 006°57'51"E
13.11 2004 - Boulogne-sur-Mer, Pas-de-Calais, France 50°43'40"N 001°35'16"E JMS
28.11 2004 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
11.12 2004 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
23.12 2004 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
08.01 2005 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
24.01 2005 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
11.02 2005 - Boulogne-sur-Mer, Pas-de-Calais, France 
03.03 2005 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
15.06 2005 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
25.07 2005 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
05.08 2005 - Boulogne-sur-Mer, Pas-de-Calais, France 
09.08 2005 - Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E
20.08 2005 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
25.08 2005 - Boulogne-sur-Mer, Pas-de-Calais, France 
05.09 2005 - Le Portel beach, Pas-de-Calais, France JMS
17.09 2005 - Le Portel beach, Pas-de-Calais, France 
09.11 2005 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
25.01 2006 - Le Portel beach, Pas-de-Calais, France JMS
18.04 2006 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
31.07 2006 - Le Portel beach, Pas-de-Calais, France JMS
30.08 2006 - Boulogne-sur-Mer, Pas-de-Calais, France 
18.09 2006 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
19.09 2006 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
25.09 2006 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
21.10 2006 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
08.01 2007 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
31.01 2007 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
22.04 2007 - Gismerøya, Mandal, Vest-Agder, Norway 58°00'52"N 007°28'37"E 
12.08 2007 - Le Portel beach, Pas-de-Calais, France JMS
27.08 2007 - Le Portel beach, Pas-de-Calais, France JMS
02.09 2007 - Le Portel beach, Pas-de-Calais, France 
24.09 2007 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
23.10 2007 - Le Portel beach, Pas-de-Calais, France 
28.12 2007 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
30.04 2008 - Skjolnes søppelplass, Farsund, Vest-Agder, Norway 58°04'41"N 006°48'32"E
01.08 2008 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
02.08 2008 - Boulogne-sur-Mer, Pas-de-Calais, France JMS
01.09 2008 - Le Portel beach, Pas-de-Calais, France 
17.10 2008 - Le Portel beach, Pas-de-Calais, France 
17.02 2009 - Le Portel beach, Pas-de-Calais, France JMS
21.08 2009 - Le Portel beach, Pas-de-Calais, France JMS
18.10 2009 - Le Portel beach, Pas-de-Calais, France 
11.12 2009 - Le Portel beach, Pas-de-Calais, France 
06.05 2010 - Herreholmen, Lyngdal, Vest-Agder, Norway 58°02'02"N 006°57'51"E
12.07 2010 - Herreholmen, Lyngdal, Vest-Agder, Norway 
13.08 2010 - Le Portel beach, Pas-de-Calais, France JMS
14.08 2010 - Le Portel beach, Pas-de-Calais, France 
18.08 2010 - Boulogne-sur-Mer harbour, Pas-de-Calais, France JMS
28.08 2010 - Le Portel beach, Pas-de-Calais, France 
10.09 2010 - Boulogne-sur-Mer beach, Pas-de-Calais, France JMS 
11.10 2010 - Le Portel beach, Pas-de-Calais, France JMS
20.11 2010 - Le Portel beach, Pas-de-Calais, France 
29.08 2011 - Le Portel beach, Pas-de-Calais, France 
29.10 2011 - Le Portel beach, Pas-de-Calais, France JMS
18.12 2011 - Boulogne-sur-Mer harbour, Pas-de-Calais JMS
22.12 2011 - Boulogne-sur-Mer harbour, Pas-de-Calais, France 50°43'34"N 001°35'04"E JMS
02.06 2012 - Herreholmen, Lyngdal, Vest-Agder, Norway 58°02'02"N 006°57'51"E 
28.06 2012 - Herreholmen, Lyngdal, Vest-Agder, Norway 58°02'02"N 006°57'51"E 
15.11 2012 - Boulogne-sur-Mer harbour, Pas-de-Calais, France 50°43'34"N 001°35'04"E JMS
05.01 2013 - Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E 
19.02 2013 - Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E JMS
02.07 2013 - Skjolnes søppelplass, Farsund, Vest-Agder, Norway 58°04'41"N 006°48'32"E
08.08 2013 - Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E JMS 
25.08 2013 - Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E JMS
08.09 2013 - Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E 
12.10 2013 - Le Portel beach, Pas-de-Calais, France 50°42'48"N 001°34'06"E JMS
31.10 2013 - Boulogne-sur-Mer harbour, Pas-de-Calais, France 50°43'34"N 001°35'04"E JMS
14.11 2013 - Boulogne-sur-Mer Port, Pas-de-Calais, Fr -
10.12 2013 - Boulogne-sur-Mer Plage, Pas-de-Calais, Fr JMS
13.12 2013 - Boulogne-sur-Mer Plage, Pas-de-Calais, Fr -
18.12 2013 - Boulogne-sur-Mer Port, Pas-de-Calais, Fr JMS
30.12 2013 - Boulogne-sur-Mer Port, Pas-de-Calais, Fr JMS
23.08 2014 - Boulogne sur mer "Hub port", Pas-de-Calais, Fr JMS
28.08 2014 - Boulogne-sur-mer, Pas-de-Calais, Fr -
30.08 2014 - Boulogne sur mer "Hub port", Pas-de-Calais, Fr JMS
27.09 2014 - Le Portel "beach", Pas-de-Calais, Fr JMS
09.10 2014 - Boulogne-sur-mer "harbour", Pas-de-Calais,Fr JMS
26.10 2014 - Boulogne-sur-Mer Port, Pas-de-Calais, France JMS
12.11 2014 - Boulogne-sur-Mer "bassin Loubet", Pas-de-Calais, France
30.11 2014 - Wimereux Plage, Pas-de-Calais, France JMS
25.03 2015 - Storøytåa, Mandal, Vest-Agder, Norway - 57°59'18"N 007°26'10"E
22.08 2015 - Le Portel beach, Pas-de-Calais, France JMS
20.09 2015 - Le Portel beach, Pas-de-Calais, France JMS
25.09 2015 - Boulogne-sur-Mer "bassin Loubet", Pas-de-Calais, France
02.10 2015 - Boulogne-sur-Mer "bassin Loubet", Pas-de-Calais, France JMS

below: JH3C 12cy: October 02 2015, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P6 fully grown, P9-P10 old. Missing central GC.

below: JH3C 11cy: October 09 2014, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P6 fully grown, P10 old. Missing central GC. No black on bill.

below: JH3C 10cy: October 31 2013, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P8 fully grown.

below: JH3C 4cy: September 24 2007, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P8 almost equaling P7; P10 still old, with large mirror. On jizz, most probably a female, with 'friendly' expression (for GBBG at least!).