[1] The term mulard or moulard is generally reserved for offspring where the parental drake is a Muscovy and the duck is a Pekin.

Like Muscovy ducks, mulards have claws on their feet, but do not fly and perch; instead, they prefer to stay near water, as Pekins do.

[3] Traditionally, foie gras was primarily produced with geese, but by the 1960s the majority of farmers began to use mulards.

Geese are more expensive to maintain than ducks (they are larger and more aggressive), and the more temperamental Muscovies did not accept the process of gavage (force feeding) as readily as Pekins, causing the quality of the foie gras to suffer.

[4] Today in France, the leading foie gras producer and consumer, the use of hybrid ducks outnumbers the use of geese.