https://grcforum.blogspot.com/2013/04/lisvane-reservoir-aythya.html
Glamorgan Rarities Committee: Lisvane Reservoir Aythya
A few pics of an Aythya hybrid on Lisvane Res. It has been around since 20/4/13, but always distant from the Black Oak viewing platform and ...
rarities committeeglamorganlisvanereservoir