Wandsworth Common: Waterbird?

Splashier and flappier in large
Extras:
Before blip
After blip

Im and I wandered over to Wandsworth Common... It started out very hazy, but the sun broke through and the light was rather bright and warm.
I thought it'd be another moorhen blip, but the washing pigeons were more fun photographically today.

Others here (or right from Coot drying wings)