The Welsh Harlequin originated in 1949 from two sport Khaki Campbell ducklings by a duck breeder living in Wales. Although imported into the United States in the late 1960s, it has taken decades for the breed to establish a hold in the United States after many years of maintaining only limited and closely related breeding stock. The silver variety of the Welsh Harlequin was accepted by the American Poultry Association in 2001.
The Welsh Harlequin is a lightweight breed at 5-5.5 pounds. As a descendent of the Khaki Campbell, Welsh Harlequins are outstanding layers, producing 240‑330 eggs per year. A true dual-purpose breed, they dress out well and are known to produce a clean, lean meat.