The ducks grow fast, reaching 5 to 5 1/2 pounds (2 to 2.5 kg.)
They are raised primarily for their eggs, of which the ducks are good layers.
The meat from the ducks is considered by most to be of of so-so quality.
The Estaires Duck breed originated along the Lys river as it passes through the Estaires département of France. Estaires is in the far north of France on the English channel, and borders on Belgium.
One of the breed’s ancestors is probably the Pekin duck.
Scherf, Beate D., Editor. World Watch List for Domestic Animal Diversity. Rome: Food and Agriculture Organization of the United Nations. Second Edition. 1995. Page 233.