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) 78G 1cy: October 07 2010, Boulogne sur Mer, France (50.44 N - 01.35 E). Picture Jean-Michel Sauvage.

Eggs hatched on May 21 2010 and pulli ringed in Le Havre - Paluel (CNPE) on June 24 2010. Size and jizz suggest a female.
Only few upper scapulars replaced, other scapulars juvenile. Coverts and tertials juvenile.

By November, it left the Pass-de-Calais area again, and it was observed on November 03 2010 at Le Havre.