Sorry about the Glauc Dave, perhaps it's on its way south!
I took a leaf out of Steve Lister's book and using a 75x EP managed to read 4 colour rings today. One was the Med Gull ringed in Hamburg, Germany. The others were all Lesser Black-backs. Here's the story of just one, courtesy of Peter Stewart:-
Lesser Black-backed Gull
FH21367 N 10 Ringed 22/11/08 SGD Stoke Orchard landfill site, Gloucestershire. 51.56N 02.06W
S 12 Sighted 07/02/09 RC Stubbers Green, Aldridge, West Midlands (77 km, N, 77 days)
O 12 Sighted 12/11/09 JDS Grundons landfill site, Gloucestershire (2 km, N, 355 days)
O 12 Sighted 17/11/09 JDS Grundons landfill site, Gloucestershire (2 km, N, 360 days)
O 12 Sighted 05/12/09 JDS Grundons landfill site, Gloucestershire (2 km, N, 1 yr 13days)
O 12 Sighted 10/12/09 JDS Grundons landfill site, Gloucestershire (2 km, N, 1 yr 18days)
O 12 Sighted 03/01/10 PFS Throckmorton landfill site, Worcestershire (22 km, N, 1 yr 42days)
S 12 Sighted 07/01/10 SH Shawell landfill site, Leicestershire (82 km, NE, 1 yr 46days)
I'm hoping it's brought the Ring-billed Gull with it from Throckmorton.