8J9 was ringed as a chick on 07/05/2007 on the Coto Donana, southern Spain according to the mid-wales ringers blog. 1720kms south of Borth!
I saw about 600 on the Barbate marshes just south of Coto Donana in Oct last year and have about a dozen ring numbers in my notebook. Was wondering who to e-mail so now Tony Cross can tell me!