Dutch Black-headed gull

Today, during a short lunch break, I was very happy to find a Dutch-ringed Black-headed gull on the beach of Middelkerke (West-Vlaanderen), with white ring E8SC. I also managed to read 4 metal rings of Turnstones in Oostende, probably all locally ringed. There were also 2 Belgian Herring gulls, but the codes could not be read entirely.

Black-headed gull white E8SC (F Majoor), this bird was colour-ringed in summer 2010, and already had a Belgian metal ring. It was seen in the autumn of that year on the same beach as where I saw it, but had not been seen since!