Laughing kookaburra there. He probably obtained a preserved specimen from one of the naturalists who accompanied Captain James Cook to the east coast of Australia. Edme-Louis Daubenton and François-Nicolas Martinet included a coloured plate of the laughing kookaburra based on Sonnerat's specimen in their "Planches enluminées d'histoire naturelle". The plate has the legend in French ""Martin-pecheur, de la Nouvelle Guinée"" (Kingfisher from New Guinea). In 1783, the French naturalist Johann Hermann provided a formal description of the species based the coloured plate by Daubenton and Martinet. He gave it the scientific name "Alcedo novæ Guineæ". The current genus "Dacelo" was introduced in
What Bird is That? kookaburra seated on and within a large red question mark. It contains 36 coloured plates of paintings of Australian birds by the author, as well as several black-and-white photographic plates of habitat. There were numerous reprints and revised editions in various formats produced well into the 1980s. The first edition was sponsored by the Gould League of Bird Lovers of New South Wales of which Cayley was a Council member. In return for its sponsorship, Cayley offered the Gould League four tenths of his 10% book royalty. However, initial sales were slow and in 1935 he sold his entire share