You may recall that last August on 3rd, I saw this colour-ringed juv Sandwich Tern at Ynyslas. (Yellow ECL)
It had been ringed as a chick on 24th June at the Ythan Estaury in north east Scotland.
Ewan Weston of the Grampian Ringing Group tells me that a few days ago, on 7th, it was seen in Namibia at the Walvis Bay Oyster Beds.