On the 14th there were about 60 med gulls at Algés Harbour mostly 1st and 2nd winters and also a few adults. I controlled about 40 individuals for rings (the remaining were sitting in the water) and only one was ringed:
Green 1Z4 This individual was ringed in France, on Barbâtre, Polder de
Sebastopol, Vendée by team Matthieu Vaslin and Cap
Ornis Baguage in 2009.
It had been in Portugal previously in it's first winter and was controlled by Stuart Mckay.
A photo of the place