The 100 Best Birdwatching Sites in Australia contains the author's personal selection of 100 of the best birdwatching sites in all states, territories and islands of Australia. The sites are chosen for the large number of species or the large number of special birds to be found in each one. In some cases, the sites are quite specific, such as Hasties Swamp, some are huge (Lakefield National Park), some are lengthy (the Strzelecki Track) and some cover a whole district, such as Katherine. Access details of sites have been updated where relevant for the 3rd edition.

Sue Taylor's engaging narrative describes the efforts she goes to in search of particular species. For each site she covers the type of habitat, which special species may be found there and when is the best time to visit. She lists four birds to look out for. Photographs show the site and two of the species that inhabit it whether as residents or as seasonal visitors.