In reply to mike123:
We've have had three ducks (and hens) for about 10 years. Specifically regarding the ducks, for us and where we live, to keep them alive has been a major commitment. We have a pond but they do not sleep on it - for their safety from predators, we have always kept them in a barn at night. We have to herd them in every night at dusk- they do not go by themselves. That's *every* night, 365 days a year. One day we got back after dark after visiting family and one had been taken by a fox. We found the pile of feathers in the field behind us. We now have two.
The eggs were great, but they're too old for eggs now and when they go, they won't be replaced.
Hens on the other hand are simple. They go to bed by themselves and with an automatic pop-hole door opener are virtually independent.
Go with hens is my advice - unless you don't go out much
Edited for typo
Post edited at 13:05