For most of today there were hundreds of Commic Terns distantly feeding off
Ynyslas brickhouse (thanks to Russell). I had a couple of tries at trying to
count them and got 170 and then 133 a few hours later, most of them were too
distant to assign species confidently, but they appeared to be
mostly Arctic's. A pale-phase Arctic Skua was attracted to the frenzy.
Cattle Egrets and the Ring-billed Gull were still around and there were five
Shoveler on Glandwr.
Edward O'Connor