Nine eggs in the nest
The last time I looked inside the nest there were only 6 eggs so some duck has been busy when I haven't been watching! Every time we've looked at the nest via the camera through our TV nothing seemed to have changed so we assumed that the nest had been abandoned. The good news, so far, is that the mop curtain seems to have kept the crow away.
We think it was the creamy tailed duck in the box but we shall probably know for sure after a few days. Unless, of course, there's more nest swapping!