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 4cy March

Under construction

 

9101.jpg (76303 bytes)Great Black-backed Gull (Larus marinus) JA615 4cy: March 13 2011, Scheveningen, the Netherlands.

9030gbbg4cy.jpg (62908 bytes)Great Black-backed Gull (Larus marinus) sub-adult: March 16 2003, Boulogne-sur-Mer, France (50.42 N - 01.34 E).

9222gbbg.jpg (54625 bytes)Great Black-backed Gull (Larus marinus) sub-adult: March 16 2003, Boulogne-sur-Mer, France (50.42 N - 01.34 E).

9224gbbg.jpg (66196 bytes)Great Black-backed Gull (Larus marinus) sub-adult: March 17 2003, Boulogne-sur-Mer, France (50.42 N - 01.34 E).

9372gbbg4cy.jpg (48935 bytes)Great Black-backed Gull (Larus marinus) sub-adult: March 17 2003, Boulogne-sur-Mer, France (50.42 N - 01.34 E).

2058gbbg5cy.jpg (78089 bytes)Great Black-backed Gull (Larus marinus) sub-adult: March 20 2004, IJmuiden, the Netherlands (52.27 N, 04.33 E).

2103gbbg4cy.jpg (75615 bytes)Great Black-backed Gull (Larus marinus) sub-adult: March 20 2004, IJmuiden, the Netherlands (52.27 N, 04.33 E)

4wmarmaa02.jpg (48293 bytes)Great Black-backed Gull (Larus marinus) sub-adult: March 2000, IJmuiden, the Netherlands (52.27 N, 4.33 E).
An individual much resembling an adult with most of the upper-parts jet-black. Both primary p9 and p10 show a mirror and the tail is predominantly white.