they were not on their nest - but, in fact, further up the lake as the proud parents of two young Grebes. Whether the other two eggs were predated or it was the newly hatched young I don't know (there were 4 eggs as far as I know).
Initially on approaching the lake I realised that Mum had at least 1 youngster on her back. I spent nearly 2 hours from different spots watching and photographing them. During that time a second one revealed itself. It seemed smaller and certainly didn't react so quickly when Dad brought the next bit to eat.
As usual, I was thinking: if only the light was better - if only they were nearer!
Well towards the end of my rewarding vigil they did come closer to a bank so I want to meet them there.
(The pictures could be better but it was a privilege to be there and see these beautiful birds)
(The detail is better seen by enlarging the pictures by clicking on them...)