Chris keeps reading the rings and on 8th noted Green ANZT in the harbour at Aberystwyth. I said to him that this had a familiar ring about it (no pun intended).
It had been ringed prior to fledging at a site in Germany close to the Dutch border in June 2013. It was next seen inland in Belgium in April 2015 before Chris came across it at Aberystwyth in 2015 on 24th and 29th August and 6th October and then again the other day.