A collection of natural wildlife sounds of bird, frog and mammal species. David Stewart is Australia's most renowned wildlife sound recordist. Now based in Brisbane, David has spent the last 36 years travelling throughout Australia amassing the most extensive collection of natural bird, frog and mammal sounds in the country. David's digital collection is fully documented and has been lodged with the Australian National Wildlife Sound Collection, CSIRO in Canberra as his contribution to Australia's National Heritage. The British Library, National Sound Archive also houses a large part of the collection. In 2008 David provided his collection to the Macaulay Laboratory of Ornithology, Ithaca, New York State. While David lived on the far north coast of NSW he assisted the NSW National Parks & Wildlife Service and other government organisations by compiling 18 field survey CDs of rare fauna in NSW.