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) JT425 2nd-3rd cycle (2CY-3CY), October - December 2014 & December 2015, the Netherlands.

CR-Code Black ring with white code: JT425 LBNW(JT425);RBM
Ringing Centre Stavanger Museum (Norway) Ring number 3039165
Species Great Black-backed Gull  Larus marinus
Sex Unknown Age Pullus

Date

Place

Coordinates

Observers

Days/km/°

29.06 2013

Storøy ved Havren, Mandal, Vest-Agder, Norway

57°59'27"N 007°26'23"E

Evenrud, Jon; Helberg, Morten

-

26.01 2014

North beach, Katwijk aan Zee, Zuid-Holland, The Netherlands

52°12'52"N 004°24'01"E

van Kleinwee, Maarten

211/671/198

05.02 2014

IJmuiden Zuidpier, Noord-Holland, The Netherlands

52°27'32"N 004°32'09"E

Koster, Jasper

221/642/197

19.02 2014

Katwijk aan Zee Strand, Zuid-Holland, The Netherlands

52°12'33"N 004°23'46"E

Groenewegen, Casper

235/671/198

23.02 2014

Binnenwatering, Katwijk aan Zee, Zuid-Holland, The Netherlands

52°12'30"N 004°24'10"E

Spierenburg, Peter

239/671/197

26.02 2014

Katwijk aan Zee Strand, Zuid-Holland, The Netherlands

52°12'33"N 004°23'46"E

Hoeben, Rob

242/671/198

23.03 2014

North beach, Katwijk aan Zee, Zuid-Holland, The Netherlands

52°12'52"N 004°24'01"E

Spierenburg, Peter

267/671/198

28.10 2014

Katwijk aan Zee - Binnenwatering, Zuid-Holland, The Netherlands

52°12'31"N 004°24'11"E

van der Meer, Frank

486/671/197

25.11 2014

katwijk, Zuid-Holland, The Netherlands

52°12'55"N 004°23'58"E

Muusse, Mars

514/671/198

20.12 2014

Kotterkade Midden, Haringhaven, IJmuiden, Noord-Holland, The Netherlands

52°27'26"N 004°34'59"E

Altenburg, Ruud; Muusse, Mars

539/641/197

21.12 2014

Katwijk, Zuid-Holland, The Netherlands

52°12'33"N 004°23'46"E

Hoeben, Rob

540/671/198

02.01 2015

Katwijk, Zuid-Holland, The Netherlands

52°12'33"N 004°23'46"E

Hoeben, Rob

552/671/198

25.01 2015

beach Coepelduynen Noordwijk beachmark 84, Zuid-Holland, The Netherlands

52°13'39"N 004°24'45"E

Spierenburg, Peter

575/669/197

27.01 2015

Scheveningen beach, Zuid-Holland, The Netherlands

52°06'15"N 004°15'52"E

Snellink, Leo

577/685/198

22.02 2015

Scheveningen - Beach, Zuid-Holland, The Netherlands

52°06'45"N 004°16'34"E

van der Vliet, Rinse; Walta, Caroline

603/684/198

22.02 2015

Scheveningen Noorderstrand (zandsuppletie), Zuid-Holland, The Netherlands

52°06'41"N 004°16'28"E

van der Vliet, Rinse

603/684/198

06.04 2015

Katwijk aan Zee Strand, Zuid-Holland, The Netherlands

52°12'33"N 004°23'46"E

Hoeben, Rob

646/671/198

12.08 2015

Hvide Sande, Midtjylland, Denmark

56°00'00"N 008°07'49"E

Stundner, Claus

774/225/169

12.10 2015

Meijendel beach, Zuid-Holland, The Netherlands

52°07'44"N 004°18'14"E

Snellink, Leo

835/682/198

12.11 2015

Katwijk aan Zee Strand, Zuid-Holland, The Netherlands

52°12'33"N 004°23'46"E

Muusse, Mars

866/671/198

24.11 2015

Katwijk on the Sea, Netherlands, The Netherlands, The Netherlands

52°12'30"N 004°24'11"E

Marijnis, Annelies

878/671/197

04.12 2015

Scheveningen, Zuid-Holland, The Netherlands

52°05'52"N 004°15'50"E

Muusse, Mars

888/686/198

Small bird, probably female.

below: Great Black-backed Gull (Larus marinus) JT425 3rd cycle (3CY), December 04 2015, Scheveningen, the Netherlands.

Mirrors on both P9 and P10.

below: Great Black-backed Gull (Larus marinus) JT425 2nd cycle (2CY), December 20 2014, IJmuiden, the Netherlands.

Between these observations, a few scapulars have been replaced. The fresh feathers are obvious dark grey. Also new upper tertials (GC1-2 already new in October).

below: Great Black-backed Gull (Larus marinus) JT425 2CY, October 28 2014, Katwijk aan Zee, the Netherlands. Picture: Frank van der Meer.

Last phase of complete moult, P10 still growing.