Des McKenzie emailed to tell me that "our" Mediterranean Gull wintering on the Round Pond at Kensington Gardens has been retrapped on its summer holiday.
Here it is in Pionierinsel, Hambug, Germany on 24th May this year. Looking very dapper with its hood on. Thanks to Uli Knief of the MedGull Team, Hamburg for furnishing us with a pic. A triumph for colour-ringing. Remember if you read, or recover, a colour ring then you can report it at www.ring.ac.