Thanks for the Avocet record John – 6V was ringed as a chick at Conder Green on 1/6/21, was at Leighton Moss on 14/7/21, then was photographed at Alkborough in north Lincolnshire on 31/7/21 and again on 13/8/21 and 18/8/21, and is now back – rather surprisingly. It was reported by someone else on 26th but it is useful to get a second observer to provide corroborative evidence, so thanks for posting.
Do you have an approximate time for your sighting please?
Ian Hartley