A corruption of Whydaw bird. So called from the country of Whydaw, in Western Africa. The blunder is perpetuated in the scientific name given to the genus, which is the Latin Vidua, a widow.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
More on Widow Bird from Infoplease:
24 X 7
Explore , Math Homework Helper