What is "mulard"

The mulard (or moulard) is a domestic duck hybrid of Pekin and muscovy ducks. The mulard, therefore, is not just a hybrid between different species, but between different genera: the muscovy is (Cairina moschata) whereas the Pekin (Anas platyrhynchos domestica) is descended from the mallard (Anas platyrhynchos). Like many inter-specific F1 hybrids, mulards are sterile and are commonly called " mule ducks". They can be propagated by mating male muscovies with female pekins, but most are produced by artificial insemination.

Strictly speaking, by analogy to hybrids between horses and donkeys, the term mulard or moulard should be reserved for offspring where the parental drake is a muscovy and the duck is a pekin. When the drake is a pekin, the offspring tend to be smaller and are called hinnies.