Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)

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

gbbg 1cy August
gbbg 1cy September
gbbg 1cy October
gbbg 1cy November
gbbg 1cy December

gbbg 2cy January
gbbg 2cy February
gbbg 2cy March
gbbg 2cy April
gbbg 2cy May
gbbg 2cy June
gbbg 2cy July
gbbg 2cy August
gbbg 2cy September
gbbg 2cy Oct-Nov

gbbg 3cy January
gbbg 3cy February
gbbg 3cy March
gbbg 3cy April
gbbg 3cy May
gbbg 3cy June
gbbg 3cy July
gbbg 3cy August
gbbg 3cy September
gbbg 3cy October
gbbg 3cy December

gbbg sub-ad January
gbbg sub-ad February
gbbg sub-ad March
gbbg sub-ad April
gbbg sub-ad June
gbbg sub-ad July
gbbg sub-ad August
gbbg sub-ad September
gbbg sub-ad October
gbbg sub-ad November

gbbg ad Jan-April
gbbg ad June
gbbg ad July
gbbg ad August
gbbg ad September
gbbg ad October
gbbg ad November

Great Black-backed Gull (Larus marinus) CZD July 2008 - July 2009, U.K. & France. Pictures: Mike Marsh & Jean-Michel Sauvage.

Bird red CZD (metal ring HT21173), ringed on 13 July 2008 Havergate Island, Orford, Suffolk, UK (52.04N 01.31E) - ringed as a pullus.

below: CZD July 13 2008, Orford, Suffolk, U.K. Picture: Mike Marsh.

At ringing. In this nature reserve, Larus marinus is a rare breeding species.

below: CZD November 04 2008, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

This bird was entangled in fishing gear and the leg will probably die, so it will loose the foot.

Replaced some scapulars.

below: CZD July 07 2009, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

The foot getting worse. Still, complete moult halfway.