Great Black-backed Gull (Larus marinus)

(last update: October 12, 2011)

Coordinators:
Jean-Michel Sauvage (France)
Morten Helberg (Norway)
Nils Helge Lorentzen (Norway)
Mars Muusse (Netherlands)

GreatBlack-backed Gull (Larus marinus) 4cy & 10cy JB42 August 2003 & November 2009, IJmuiden, the Netherlands. Pictures Mars Muusse & Corstiaan Beeke.

CR-Code Blue with black code JB42 Ringing Centre Stavanger
Ringnumber 389169 Ringer Nils Helge Lorentzen
Species Great Black-backed Gull (Larus marinus)
Sex X Age Pull Date 01.07.2000
Place Høgholmen, Lindesnes, Vest-Agder, NORWAY Co-ordinates  58.00 N - 07.12 E

Date

Place

Coordinates

Observers

Days/km/°

01.07 2000

Høgholmen, Lindesnes, Vest-Agder, Norway

57°59'55"N 007°11'22"E

Lorentzen, Nils Helge

-

06.09 2002

IJmuiden Strand, Noord-Holland, The Netherlands

52°26'24"N 004°33'29"E

Cottaar, Fred

797/640/196

28.08 2003

IJmuiden Strand, Noord-Holland, The Netherlands

52°26'24"N 004°33'29"E

Muusse, Mars

1153/640/196

23.07 2004

Svinør, Lindesnes, Vest-Agder, Norway

58°01'51"N 007°13'24"E

Ahlbäck, Gerhard

1483/4/29

22.04 2007

Snik, Lindesnes, Vest-Agder, Norway

58°03'09"N 007°16'24"E

Bentsen, Thomas
Lie Pedersen, Martin

2486/8/39

29.10 2008

Neeltje Jans, Zeeland, The Netherlands

51°37'55"N 003°42'01"E

Lilipaly, Sander

3042/742/198

28.11 2009

Westkapelle, Walcheren, Zeeland, The Netherlands

51°31'48"N 003°26'04"E

Beeke, Corstiaan

3437/758/200

below: 4cy JB42 August 28 2003, IJmuiden. Picture Mars Muusse.

P4 fully grown, P8-P10 still old. Tail completely white. The old wing-coverts are very bleached pale brown, some indication for immaturity; the new coverts are pitch-black. At IJmuiden beach, together with Herring Gulls (argenteus) and Lesser Black-backed Gulls (graellsii and intermedius).

below: 10cy JB42 November 28 2009, Westkapelle, Walcheren, Zeeland, The Netherlands. Picture Corstiaan Beeke.

P10 almost fully grown.