Chroicocephalus ridibundus - Black-headed Gull
This bird received its metal ring on April 3, 1999 in Malmo, Sweden (55 35 N, 13 00 E) and was aged as greater that 2CY. The color ring was added on January 10, 2006 in Leiden, The Netherlands. At the moment of the 2010 photograph it is at least in its 14 CY. I saw this animal on January 2, 2010 and subsequently on November 20, 2010.