On Sunday Chris established that there are four Goldeneye on Llyn Eiddwen, three females and an imm male, though he has not seen more than three on any one visit.
Apologies to Chris for the vague nature of this bit, but I lost the details of what he told me on the phone. Late last week a run up the Rheidol valley to look for a possible Cattle Egret produced 14 Lapwings, six Mute Swans and two female Shovelers. I also had a look for the egret and found only a Little E.