[Ducky]

My ducks are both rescue ducks.I think one is a male call duck and the other is definetaley a female mallard, they love each other too bits and arent shy about letting the hens know about it.
Could they produce young?   I know the hens can cross breed, but is it the same for ducks. 

[Kate and her Ducks]

Yes they can happily produce young.

Even Muscovies and domestic ducks can produce young and the are differnet species of duck although the offspring are sterile I understand.