George Woodley writes:
At least two cygnets have arrived; this was taken at 11:16 on Friday 21 May. The Pen had just returned to the nest as I was about to take the picture. When I returned after lunch only the Cob was on the lake.
On Sunday afternoon, I saw no sign of the cygnets but the Cob was chasing away the geese; he seemed to tolerate the ducks.
Postscript: George writes on 31st May that all the swans have disappeared. It seems certain that once again the young have died and the adults left.