Today on just a short excursion to my regular patches in Gent, I saw a lot of Black-headed gulls were present, so I was hoping for at least one ring. And after scanning 200+ birds, I finally found one, black P661, a bird which - according to cr-birding - should come from Lithuania! This is my first ring-reading from Lithuania, so I was very happy with this bird. Also, the locally-ringed bird yellow EHNE was present at the same place.
Also, one of the mystery gulls from yesterday at Le Portel (the Herring gull) has already been solved (thanks to C Duponcheel and RJ Buijs). It appears this is a bird ringed by Norman van Swelm in the Netherlands in 1997, and the original ring was orange RE7.
Black-headed gull black P661 (V Pareigis and F Majoor), ringed in Lithuania (details awaited).
Black-headed gull yellow EHNE (G Spanoghe and T Audenaert), ringed in Gent, my second sighting of this bird. A better picture of this bird can be found here: http://belgianrings.blogspot.com/2010/10/two-rings-in-gent.html