The latest edition of the Peterson Field Guide to Birds of Western North America is cause for minor celebration—the book's last update was about 20 years ago. This long-awaited fourth edition covers nearly 600 species on 176 full-color plates, and includes 588 range maps and countless illustrations. Classic Roger Tory Peterson paintings capture the essence of each species. A team of professional birders has updated the text, maps, and art to accommodate the many name changes and taxonomic lumps and splits that have occurred since the previous edition printed in 1990. This authoritative guide is ideal for anyone birding in the field or simply hanging a backyard bird feeder out west!