Ooo, I love Ducks Bonnie!
Our ducks still need to be herded every now & again - they're always the last in every night & we have 2 muscovy ducks that have flatly refused to go in for ages! And you try & get a muscovy down from a chimney pot at dusk - not easy!!
We still haven't made ours a pond though - poor little duckies

But we have 2 clam shells & 3 other large containers that are tipped up once a week & refilled for them. I'm glad in one way that we didn't knee-jerk the pond building though, because the temporary ponds have shown us just how quick they get mucky!
Andy has researched pumps & filters though & has a list of things to get for when we DO start digging out for the permanent pond...... we really need to win that lottery soon I think
I got a mixture of different coloured ducks - with a Cayuga drake, so we get some lovely colours when the eggs hatch.
A neighbour called me last November - he has been looking for any duck that lays blue eggs - mine lay white, green or black, but he got a couple of eggs that he popped under a banty hen & got 2 runners (duck & drake) Anyway, he said they were too big for what he wanted & would I take them..... so now we have 2 black runners in the mix!
Enjoy your ducks, and the duck eggs - smashing!!