The white-faced whistling duck, Dendrocygna viduata, found in Central and South America and sub-Saharan Africa, having a dark brown body, chestnut neck, black head, and white face and crown.
Origin
Late 19th century.
Definition of widow duck in US English:
widow duck
noun
rare
The white-faced whistling duck, Dendrocygna viduata, found in Central and South America and sub-Saharan Africa, having a dark brown body, chestnut neck, black head, and white face and crown.