The Collaborative International Dictionary
Whidah bird \Whid"ah bird`\, (Zo["o]l.) Any one of several species of finchlike birds belonging to the genus Vidua, native of Asia and Africa. In the breeding season the male has very long, drooping tail feathers. Called also vida finch, whidah finch, whydah bird, whydah finch, widow bird, and widow finch.
Note: Some of the species are often kept as cage birds, especially Vidua paradisea, which is dark brownish above, pale buff beneath, with a reddish collar around the neck.
Wiktionary
n. Any of several species of birds in the family Viduidae, incorporating whydahs and (vern widow finch pl=es).
WordNet
Usage examples of "widow bird".
As it happens, he worked on the very bird that I am using here to discuss the theoretical ideas, the long-tailed widow bird, and he studied it in its natural surroundings in Kenya.