Simon Cost did post earlier that at least one of the flocks at Burnham had headed inland ...

Circa 20 Arctic Terns are at Cheddar Reservoir, best seen from the Axbridge side. I counted 19 but another count a bit later made the tern total twenty one, difficult to be exact in the windy conditions. They are often sat out on the water and look very smart in flight in the sunshine, sometimes flying in to give close up views.