Lesser Black-backed Gull graellsii CM adult, June 01 2015, Calais, NW France. Picture: Jean-Michel Sauvage.
Ringed in the Netherlands, now breeding at the colony of Quai de la loire, Calais, Pas-de-Calais, France. Probably ringed as breeding adult on May 04 2006 at Moerdijk, the Netherlands. With plastic tibia and metal NLA 5431571.
Not seen before in this colony.
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