I think this is a late clutch of ducklings as most other ducklings that we have seen this year are now almost fully grown. She had 4 ducklings and I managed to get all four of them in shot in the PiP, but they are so quick moving, and the second photo was taken against the sun, so I had to lighten it, consequently the colour is no longer true.

The second PiP shows that white ducks can have yellow ducklings which are absolutely adorable.