Lesser Black-backed Gull (graellsii & intermedius)
(last update: May 17 2015)
Lesser Black-backed Gull 3cy Y8 April 14 2012, Outreau-Boulogne, NW France. Picture: Jean-Michel Sauvage.
Ringed as pullus on 09 July 2010 at Hollandsch Diep (Sassenplaat), Noord-Brabant, the Netherlands (5141.00 434.00).
Bird with new tertials and new tail. See this PDF about moult in 3cy.