As I always say I'm never not birding.
A trip to Sainsburies in Clapham became interesting, when on loading the car I heard the distant 'barking' of Barnacle Geese. On looking up I noticed a flock of 80 or so birds aproaching from the South-West. They flew right overhead and carried on North-East.
I suspect these were part of the large naturalised flock from Willington, but It is slightly possible they were wild birds judging on the direction they were travelling.