Thank you. I never knew about using a china egg to keep them laying in the same spot! The eggs usually are in a similar area but sometimes a bit random. It's actually a chicken coup which I have for them with adjoining run so I just shut them in the run at night so they have a bit of freedom. They have always slept huddled in the nesting box on the side! So now that they are laying the eggs can be found in the main area of bedding, a bit backwards! They have shavings not straw as I find it's easier to clean out, each day I just pick the muck out which on takes a few minutes and saves on having to do a big muck out each week. I suppose straw would be nicer to make a nest out of but it was just messy and difficult to clean out without taking the whole lot out.
The eggs are generally clean, hopefully if I can keep them laying in the same spot the eggs won't get mixed up with the muck. Funny things ducks are, I can watch them for hours!!!! Three is enough for me though, I don't know how any of you cope with more! They've also shown the dog who's boss, Milly my spaniel won't go in the garden when they're out and about!
Next project is to just make some adaptions to their end of the garden so it doesn't all end up as a muddy swamp over the winter. I think it's inevitable though!
Thanks again for all your advice. I will be back for more soon!