Fourth edition of a portable field guide which accompanies the fourth edition of TBirds of Australia'. Revised and expanded to include an illustrated rare bird bulletin, an Australian island territories checklist, 52 additional or replacement black-and-white drawings, and changes to 93 distribution maps. Also provides information on the taxonomy, habitat and biology of each bird family as well as covering such topics as prehistoric birds, and DNA-DNA hybridisation. Referenced and indexed.

Recent classifications of Australian birds have been limited to lists of "species" which are inadequate as biodiversity indicators. The Directory of Australian Birds: Passerines fills a huge gap in ornithological knowledge by separating out and listing not only 340 species of song-birds but also the 720 distinct regional forms. Covering about half the national bird fauna, the Directory provides science and the community with baseline information about what bird it is and where it lives in an Australia-wide context. Identity is taken down to the level of distinct regional population. No other compendium on Australian birds does this.