Lesser Black-backed Gull 2cy & 4cy J3 2010 & 2012, Spain & NW France.
Ringed in the Netherlands: at Moerdijk colony in 2009 by Roland-Jan Buijs, graellsii "Dutch intergrade".
below: 4cy J3 April 20 2012, Calais, NW France. Picture: Jean-Michel Sauvage.
Note brown feathers in carpal edge.
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below: 2cy J3 April 16 2010, Pinto, Spain. Picture: Javier Marchamalo.
Scapulars replaced. Wing-coverts and tertials juvenile.
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