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)

Great Black-backed Gull adult November

Distribution range, source: IUCN

BirdLife International Red List Category & Criteria: Least Concern

Justification:
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be increasing, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Native:
Anguilla; Antigua and Barbuda; Austria; Barbados; Belgium; Belize; Bermuda; Bulgaria; Canada; Cuba; Czech Republic; Denmark; Dominica; Dominican Republic; Estonia; Faroe Islands; Finland; France; Germany; Gibraltar; Greece; Greenland; Guadeloupe; Haiti; Iceland; Ireland; Italy; Latvia; Lebanon; Lithuania; Macedonia, the former Yugoslav Republic of; Martinique; Montserrat; Netherlands; Norway; Poland; Portugal; Puerto Rico; Romania; Russian Federation; Saint Kitts and Nevis; Saint Lucia; Saint Pierre and Miquelon; Saint Vincent and the Grenadines; Slovakia; Spain; Sweden; Switzerland; United Kingdom; United States
Vagrant:
Algeria; Aruba; Bahamas; Belarus; Bonaire, Sint Eustatius and Saba; Bosnia and Herzegovina; Croatia; Curaçao; Cyprus; Egypt; Hungary; India; Iran, Islamic Republic of; Israel; Kazakhstan; Luxembourg; Mauritania; Montenegro; Morocco; Netherlands Antilles; Serbia; Sint Maarten (Dutch part); Slovenia; Syrian Arab Republic; Tunisia; Turkey; Venezuela; Virgin Islands, U.S.

 

7095jp36.jpg (66909 bytes)Great Black-backed Gull (L. marinus) EENovember 11 2005, IJmuiden, the Netherlands. Picture: Ruud Altenburg.

re703wk281004.jpg (129485 bytes)Great Black-backed Gull (L. marinus) 7cy & 9cy E703 October & November, Westkapelle, the Netherlands (51.33N-03.25E).
8418gbbgjb42.jpg (64101 bytes)Great Black-backed Gull (L. marinus) 10cy JB42 November 2009, Westkapelle, the Netherlands.
P9 fully grown.
jd28wk191004b.jpg (115232 bytes)Great Black-backed Gull (Larus marinus) JD28 13cy: November 02 2010, Westkapelle, the Netherlands (51.33 N - 03.25 E).

gbbgGreat Black-backed Gull (Larus marinus) JL03 2006, 2009 & 2013, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

8471j52c.jpg (85052 bytes)Great Black-backed Gull JE2U (Larus marinus) 8cy, November 03 2010, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.
8471j52c.jpg (85052 bytes)Great Black-backed Gull JE4H (Larus marinus) 9cy, November 06 2011, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.
gbbgGreat Black-backed Gull (Larus marinus) JH0R 2010, 2011, 2012, 2013, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.
gbbgGreat Black-backed Gull (Larus marinus) JP05 17+cy, November 01 2013, Boulogne sur Mer, France. Picture Jean-Michel Sauvage.
1598.jpg (74227 bytes)Great Black-backed Gull J34Y (Larus marinus) 5cy, November 08 & 30 2011, Boulogne/Mer, France. Picture: J-M Sauvage.
1598.jpg (74227 bytes)Great Black-backed Gull J78Z (Larus marinus) 5cy, November 12 2011, Boulogne/Mer, France. Picture: J-M Sauvage.
1598.jpg (74227 bytes)Great Black-backed Gull JK37 (Larus marinus) 5cy, November 03 2010, Boulogne/Mer, France. Picture: J-M Sauvage.
1598.jpg (74227 bytes)Great Black-backed Gull (Larus marinus) 5cy JA112 2008, 2011 & 2012, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.
gbbgGreat Black-backed Gull (Larus marinus) 4CY-5CY JE446 2012 & 2013, Boulogne sur Mer, France.  Picture Jean-Michel Sauvage.
5825stavangergbbg.jpg (55334 bytes)Great Black-backed Gull (marinus) 25cy NOS 354859 October 29 & November 01 2012, Boulogne-sur-Mer, NW France. Picture: Jean-Michel Sauvage.
5825stavangergbbg.jpg (55334 bytes)Great Black-backed Gull (marinus) SVS 9159239 5-6cy, March 2012-April 2013, Boulogne-sur-Mer, France. Picture Jean-Michel Sauvage.
5825stavangergbbg.jpg (55334 bytes)Great Black-backed Gull (marinus) 8cy SVS 9176540 November 2012, Boulogne-sur-Mer, NW France. Picture: Jean-Michel Sauvage.
8471j52c.jpg (85052 bytes)Great Black-backed Gull (Larus marinus) -- adult, September - October 2011, November 2013, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

7095jp36.jpg (66909 bytes)Great Black-backed Gull (Larus marinus) ad, November 24 2006, Etaples, N France.

7095jp36.jpg (66909 bytes)Great Black-backed Gull (Larus marinus) ad, November 18 2009, Khniffiss Lagoon, Morocco. Picture: Morten Helberg.