This book provides the first standardized English-language nomenclature for all living birds of the world. While previous checklists, including those by Sibley and Monroe, Clements, and Howard and Moore, were primarily taxonomic works, Birds of the World provides English-language names based on the rules and principles developed by leading ornithologists worldwide and endorsed by members of the preeminent International Ornithological Congress.
The book's introduction includes background material on the project and discusses the authors' rationale for naming conventions. The list of over 10,000 names follows, in taxonomic order, with relevant scientific names and a brief description of the birds' breeding range.