Lesser Black-backed Gull graellsii R:S4H 3CY, September 06 2013, Comenar Viejo, Madrid, Spain (40°15'41"N 003°38'00"W). Picture: Delfín Gonzalez.
Ringed graellsii, probably ringed as pullus on July 10 2013, at Réserve Naturelle de PORTES-EN-RE (LES) Charente-Maritime France (46,233 -1,50873). A project run by Julien Gernigon.
Juvenile plumage.
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