The second winter Med gull with only one leg was on the pontoon just down from the sails. Pics at
http://andyburnsphotography.zenfolio.com/medgull/h3409542b#h3409542b
It seems to have only part of one leg (the other is missing) so it is quite tricky trying to land.
Went back over to Cossie (will Lol Middleton) following John’s call about the lesser scaup (post below) and it was near the bridge on the west lake with a group of 10 tufties. Photos on the south wales birding facebook site.