The Collaborative International Dictionary of English. 2000.
Antrostomus vociferus — Whip poor will Whip poor will , n. (Zo[ o]l.) An American bird ({Antrostomus vociferus}) allied to the nighthawk and goatsucker; so called in imitation of the peculiar notes which it utters in the evening. [Written also {whippowil}.] [1913… … The Collaborative International Dictionary of English
Whip-poor-will — n. (Zo[ o]l.) An American bird ({Antrostomus vociferus}) allied to the nighthawk and goatsucker; so called in imitation of the peculiar notes which it utters in the evening. [Written also {whippowil}.] [1913 Webster] … The Collaborative International Dictionary of English
