My calls lived with my anconas. Just make sure the calls have hiding places the bigger ducks can't get into & they will be fine.
i really dont recommend it. Bigger ducks can easily hurt calls very badly, a call ducks are (or at least mine are) about the size of a pigeon so take that to the size of a pekin or a rouen and its not a pretty picture if they get hurt.
Thanks for the input. I do have three mallards and they get along fine with the bigger ducks. As for the bigger ducks, I have one Cayuga, one buff, two WH, two smallish runners and four half-mallard mutts. The three mutts that are boys are the only ones that are really rambunctious, as they are only six months old or so, and I plan on getting rid of them. But I know calls are much more fragile than mallards, and much smaller. I have also heard they aren't as winter-hardy, and winter in northwestern Ohio can be petty brutal sometimes. And that they can fly pretty well. And they're loud. Maybe it's not a good idea...
I just had a dream about getting baby calls last night and it made me want them really bad. Like really bad. And then I watched a video of a call quacking and it's the cutest sound ever and it made me want them even more! Pied calls are calling my name... Lol