Common Scoter on Eglwys Nunydd Res

A Common Scoter was showing well on Eglwys today. I had originally thought this bird was an adult female, but looking at the footage points towards it being an immature. The views of it preening its belly shows a pale area which would be dark on an adult bird.
This Common Scoter is a new species for the BTO winter atlas for this tetrad (SS78X) and takes it to an impressive 86. Our friendly rivals over at Kenfig (SS78V) more impressive still with 93.