ha-ha bird; ha-ha pigeon noun a kookaburra, a well-known Australian bird AUSTRALIA,1938 From its call which resembles human laughter.
They shot and cooked kangaroos, even shot “Ha-Ha birds” and magpies until I stopped them. — Patsy Adam-Smith, FolkloreoftheAustralian Railwaymen, p. 128, 1969
Italians working on the Snowy River scheme called the kookaburra, or “laughing jackass”, “Ha-ha Pigeon”. — Nancy Keesing, Lilyonthe Dustbin, p. 149, 1982