Neither a true 'checklist,' nor a field guide, this is an essential reference work for any naturalists' library.
With the publication of Volume 2, this work becomes the first completely illustrated taxonomic checklist ever published. Its taxonomy incorporates the most up-to-date information and an exhaustive methodology in an entirely systematic and consistent way.
The passerine species fill more than 1,000 pages, more than Volume 1, or any of the Handbook of the Birds of the World series. This vast number of species has involved an extraordinary amount of work, increasing the size of the volume over Part 1.
This is the first ever fully illustrated checklist, with maps and detailed distributions of all of the species and subspecies levels, and is completely updated at the macrosystematic, species, and subspecies levels. This volume covers the passerines.
Species accounts include: Convenient totals for all extant and extinct taxa. Each species conveniently cross-referenced to the volume and page of treatment in the HBW series. Revised species names in French, German and Spanish, and other common names in English when appropriate. Color-coded subspecies groups marked to highlight distinct forms and their relationships. Completely updated at the macrosystematic, genus, species and subspecies levels. Changes and other relevant issues fully explained under taxonomic notes of each species. Detailed descriptions of ranges for all species and subspecies. Official IUCN category of each species from the 2016 BirdLife International/IUCN Red List of Threatened Species. Reference numbers included in text with complete bibliographical list at the end of the volume. Plate layout subtly divided by species and genera for a clearer arrangement. Color illustrations for all species, including for distinctive subspecies and morphs, from the HBW series with numerous corrections and new figures. Newly revised distribution maps with country borders included.