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
Australian Silver Kookaburra mintage of the one troy ounce coin is capped, while the others have unlimited mintage based on demand. Perth Mint originally intended to expand the 2013 mintage to one million coins, however they later reduced this number to 500,000 and declared that future years would continue to be limited to this amount. In addition to the annual design change, there is also a design change between the bullion and proof versions of the coin each year. No proof coins were minted between 2006-2011; however, there was a 1-ounce silver proof Kookaburra colored coin struck in 2012 for the Discover Australia