On the charter boat this morning to Foula ("It's not the edge of the world, but you can see it from there") for the Least Sand, on arrival we all got into the 'Foula Taxi' (a battered transit van that has seen better days) for the 'fairground ride' to the south of the island. Checking all the rock pools south of the weather station, where the bird had been for the last 3 days - no sign !!!! Just as it was being generally accepted that the bird had bogged off, it turns up on a freshwater pool that we had all walked past about an hour before ! Stunning views eventually as it fed around the edge being dwarfed by Rock Pipits.