below: Lesser Black-backed Gull graellsii 522K 2CY & 6CY, April 2010 & June 2014, Spain & the Netherlands. Picture: Antonio Gutierrez & Merijn Loeve.
Ringed as pullus in July 2009 at Dunkerque - Port Ouest, Pas de Calais, NW France.
below: Lesser Black-backed Gull graellsii 522K 2CY, April 20 2010, Pantín, Spain. Picture: Antonio Gutierrez.
Scapulars replaced. Visible wing-coverts and tertials juvenile.
below: Lesser Black-backed Gull graellsii 522K 6CY, June 03 2014, Vlissingen, the Netherlands. Picture: Merijn Loeve.
Could be breeder in Holland now.
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