Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)

Great Black-backed Gull (Larus marinus) JTV5 October 2003 & 2004, Westkapelle, the Netherlands (51.33 N - 03.25 E).

Ringed June 22 2001 at Vest-Agder, Norway (58.02N, 07.22E).
Ring recoveries: 03.08.02 Westkapelle, Zeeland, NETHERLANDS (51.32 N - 03.26 E).

CR-Code Blue with white code        JTV5  Ringing Centre  Stavanger  Ringnumber  389415  Ringer  Runar Jåbekk
Species  Great Black-backed Gull (Larus marinus)  Sex      X  Age      Pull  Date  22.06.2001
Place  Sjøbodvik, Mandal, Vest-Agder, NORWAY  Co-ordinates  58.02 N - 07.22 E

  21.06.2002 Zeebrugge, West-Vlaanderen, BELGIUM 51.20 N - 03.12 E Harry Vercruijsse
  03.08.2002 Westkapelle, Walcheren, Zeeland, NETHERLANDS 51.32 N - 03.26 E T Luiten, J Luiten, P Wolf
  16.08.2002 Zeebrugge, West-Vlaanderen, BELGIUM 51.20 N - 03.12 E Harry Vercruijsse
  08.08.2003 Boulogne-sur-Mer, Pas-de-Calais, FRANCE 50.43 N - 01.37 E Camille Duponcheel
  29.09.2003 Westkapelle, Walcheren, Zeeland, NETHERLANDS 51.32 N - 03.26 E Norman van Swelm
  28.04.2004 Lillehavn, Lindesnes, Vest-Agder, NORWAY 57.59 N - 07.05 E Nils Helge Lorentzen
  28.04.2004 Vågevannet, Lindesnes, Vest-Agder, NORWAY 57.59 N - 07.05 E Nils Helge Lorentzen
  28.07.2004 Boulogne-sur-Mer, Pas-de-Calais, FRANCE 50.43 N - 01.37 E Camille Duponcheel
  28.10.2004 Westkapelle, Walcheren, Zeeland, NETHERLANDS 51.32 N - 03.26 E     Pim Wolf

below: Larus marinus JTV5 3cy: October 11 2003, Westkapelle.

October 2003 primary moult stage: P9 fully grown and P10 at the length of P6. P10 shows an obvious mirror on  both webs.

Below: JTV5 (Larus marinus) 4cy, October 10 2004, Westkapelle, the Netherlands (51.33 N - 03.25 E). 
Picture Pim Wolf. 

Primary P8 fully grown and no old primaries left. Note the black markings on the bill, but otherwise much adult-like. Ringed in Norway.