=A guide with illustrations or photographs for identification
The first ornithological field guide covering the vast chain of the Indonesian archipelago has been completely revised following years of meticulous research. This second edition now encompasses over 2,800 illustrations, including some 325 additional new figures and nearly 500 alterations to the original artwork, supplemented by 1,352 maps of all regularly occurring species. The species are mapped with improved accuracy by including three magnified geographical regions, or by a larger archipelago-wide map frame. The book describes all 1,458 bird species known to occur in the region, including 628 endemics, 106 vagrants, six introduced species and ten species yet to be formally described. Together these represent over 13% of global bird diversity. Importantly, all subspecies are described in detail.