Simpson and Day Field Guide to the Birds of Australia, 8th Edition.
384 pages, 740 grams.
S&D was originally published in 1984 and is regularly updated to reflect taxonomic changes and the arrival of species new to Australia. The eighth edition has some welcome improvements over the seventh: some of the plates have been repainted to give better views of important diagnostic features - sometimes these were covered up by superimposing one subspecies almost over another.
Overall, the plates are good, with some nice background illustration of habitats and the space on each plate is used well. A few plates are a little disappointing, such as the Fairy-wrens, which appear smudged. The range maps are good - subspecies are usually separated by black lines across the maps and the use of bold and faint colour marks common and uncommon ranges. Species that occur in limited regions have closer-scale maps, which is advantage over the other three books. Usefully, it has a fairly decent map of Australia at the front, although it doesn't mark many of the towns referred to in the text - I've lost count of the number of mentions of Innisfail and had to look it up on a different map.
The text can sometimes be maddeningly brief, with the bare minimum of detail for some species. The symbols for migratory habits and seasonal occurrence can be difficult to remember at first.
The introduction has a good section on birdwatching and identification tips, and there are bill comparisons for pelagic birds on the end papers. At the back, good descriptions of vagrant species are given, although with fewer and smaller pictures. A brief account of nesting habits and dates are given for families, with species calendars. There is also a guide to the different habitats found in Australia, which is useful as all the guides refer to specific habitat types (mulga, dry sclerophyll, etc). Another section at the back gives checklists for islands and dependent territories.
One thing to watch for is if you buy this guide as the Helm edition, it still has the note about the end papers being waterproof, which they're not as the sodden mass it became showed all too well...
In brief
Positive: useful field size and weight; good background information; good illustrations; very good maps; good separation of vagrant and more usual species; bill comparison charts and ruler on endpapers.
Negative: text can be too brief.