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
Nice blog thanks for posting.
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