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) 3CY-6CY DKC 3092175 2012-2017, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

Great Black-backed Gull (Larus marinus) ringed as pullus (sex unknown) on 04 June 2010 at Græsholm, Frederikshavn, Jylland, Denmark (57° 29' 32" N 10° 36' 30" E). Ringed by Kjeld Tommy Pedersen. Distance travelled: 952Km.

Observed at harbour of Boulogne-sur-mer:
24/09/2012
11/09/2013
04/10/2013
24/09/2013
22/11/2013
07/11/2014
21/10/2015
18/11/2015
17/09/2016
29/09/2016
20/11/2016
11/09/2017
05-10-2017

below: Great Black-backed Gull (Larus marinus) DKC 3092175 8CY, October 05 2017, Boulogne-sur-Mer, France. Picture: Jean-Michel Sauvage.

below: Great Black-backed Gull (Larus marinus) DKC 3092175 8CY, September 11 2017, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P8-P10 old.

below marinus 6CY DKC 3092175 November 18 2015, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P8 fully grown.

below: marinus 5CY DKC 3092175 November 07 2014, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P8 fully grown, P9 growing at length of P6.

below: marinus 4CY DKC 3092175 November 22 2013, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

Complete moult almost finished.

below: marinus 4CY DKC 3092175 October 04 2013, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

below: marinus 4CY DKC 3092175 September 11 2013, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

Moult P6 / P9; P7 at tip of P5.

below: marinus 3CY DKC 3092175 September 24 2012, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.

P8 / -.