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) JYU88 2CY - 4CY, November 2015 - October 2017, the Netherlands.

Ringed as pullus on July 09 2014 at Græsholm W, Hirsholmene, Nordjylland, Denmark (57°29'25"N 010°36'15"E).

CR-Code Black ring with white code: JYU88 LBM;RBNW(JYU88)
Ringing Centre Copenhagen (Denmark) Ring number 3M0588
Species Great Black-backed Gull  Larus marinus
Sex Unknown Age Pullus

Date

Place

Coordinates

Observers

Days/km/°

09.07 2014

Græsholm W, Hirsholmene, Nordjylland, Denmark

57°29'25"N 010°36'15"E

Kergel Pedersen, Camilla; Pedersen, Kjeld Tommy

-

15.10 2014

Kennemermeer strand, IJmuiden, Noord-Holland, The Netherlands

52°27'06"N 004°33'24"E

Zwaan, Klaas

98/680/217

23.01 2015

Le Portel Plage, Pas-de-Calais, France

50°42'48"N 001°34'06"E

Sauvage, Jean Michel

198/955/221

23.01 2015

Boulogne-sur-Mer Port, Pas-de-Calais, France

50°43'34"N 001°35'04"E

Feys, Simon

198/953/221

03.04 2015

Velsen Beach, Noord-Holland, The Netherlands

52°28'25"N 004°34'19"E

Zorgdrager, Jan

268/677/217

12.04 2015

Noordwijk aan Zee, beach, Zuid-Holland, The Netherlands

52°14'19"N 004°25'22"E

Hoeben, Rob

277/705/216

03.07 2015

Forteiland Noordwest, IJmuiden, Noord-Holland, The Netherlands

52°27'56"N 004°34'27"E

Verbeek, José

359/678/217

23.07 2015

Petten, Polder R, Noord-Holland, The Netherlands

52°46'01"N 004°40'08"E

Zorgdrager, Jan

379/646/218

03.08 2015

Forteiland Zuid, IJmuiden, Noord-Holland, The Netherlands

52°27'51"N 004°34'35"E

Cottaar, Fred

390/678/217

08.08 2015

Forteiland Zuid, IJmuiden, Noord-Holland, The Netherlands

52°27'51"N 004°34'35"E

Cottaar, Fred

395/678/217

06.09 2015

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

52°12'31"N 004°24'10"E

van Kleinwee, Maarten

424/709/216

07.10 2015

IJmuiden, Felison terminal, Noord-Holland, The Netherlands

52°27'44"N 004°35'10"E

Verbeek, José

455/678/216

09.11 2015

IJmuiden haven, Noord-Holland, The Netherlands

52°27'30"N 004°35'39"E

Loeve, Merijn

488/678/216

10.11 2015

IJmondhaven, IJmuiden, Noord-Holland, The Netherlands

52°27'39"N 004°34'14"E

Verbeek, José

489/679/217

13.11 2015

IJmondhaven, IJmuiden, Noord-Holland, The Netherlands

52°27'39"N 004°34'14"E

Verbeek, José

492/679/217

20.11 2015

IJmuiden, loggerstraat west, Noord-Holland, The Netherlands

52°27'36"N 004°34'51"E

Zorgdrager, Jan

499/678/216

07.02 2016

IJmuiden, IJmondhaven., Noord-Holland, The Netherlands

52°27'37"N 004°34'13"E

Verbeek, José

578/679/217

30.04 2016

Katwijk aan Zee Strand, Buitenwatering N, The Netherlands

52°12'45"N 004°23'56"E

Muusse, Mars

661/708/216

16.05 2016

Katwijk aan Zee Strand, Zuid-Holland, The Netherlands

52°13'07"N 004°24'13"E

Marijnis, Annelies

677/708/216

02.06 2016

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

52°12'31"N 004°24'10"E

Marijnis, Annelies

694/709/216

08.07 2016

Schoorl, reservaat de Putten, Noord-Holland, The Netherlands

52°44'10"N 004°38'44"E

Algera, Sytze

730/650/218

08.10 2017

Noordwijk north beach, Zuid-Holland, The Netherlands

52°15'38"N 004°26'29"E

Muusse, Mars

1187/702/216

13.10 2017

Katwijk, Zuid-Holland, The Netherlands

52°12'31"N 004°24'07"E

Marijnis, Annelies

1192/709/216

18.10 2017

IJmuiden Zuidpierstrand, Noord-Holland, The Netherlands

52°27'33"N 004°33'04"E

Muusse, Mars

1197/680/217

26.10 2017

Katwijk aan Zee Strand, Zuid-Holland, The Netherlands

52°12'33"N 004°23'46"E

Marijnis, Annelies; Muusse, Mars

1205/709/216

below: Great Black-backed Gull (Larus marinus) JYU88 4CY, October 26 2017, Katwijk, the Netherlands.

Mirror on P8 and P9 and P10 mirror merged with tip.

below: Great Black-backed Gull (Larus marinus) JYU88 4CY, October 18 2017, IJmuiden, the Netherlands.

Mirror on P8 and P9 and P10 mirror merged with tip.

below: Great Black-backed Gull (Larus marinus) JYU88 4CY, October 08 2017, Noordwijk, the Netherlands.

P8 f.g. P9<P8. Central secs growing.

below: Great Black-backed Gull (Larus marinus) JYU88 3CY, April 30 2016, Katwijk, the Netherlands.

2nd generation flight feathers with mirror on P10. Complete moult started: P1-P2 dropped.

below: Great Black-backed Gull (Larus marinus) JYU88 2CY, November 20 2015, IJmuiden, the Netherlands. Picture: Jan Zorgdrager.

2nd generation flight feathers with mirror on P10.