Lesser Black-backed Gull graellsii EV83 6cy, April 22 2002, Nachtegalenkeet, Maasvlakte, the Netherlands (51.59N,04.02E). 

An adult male ringed, left orange EV83. The white tip merges with the mirror on p10. This bird was ringed as pullus at the nest, July 2 1997, now in its 6cy.