This long-awaited book seems destined to be the authoritative work for years to come on this large and diverse group, which runs the gamut from some of the most familiar to some of the least-known, most spectacular, and most threatened of the world's birds. The comprehensive text incorporates much information that is new, revised, or previously overlooked, and the plates are attractive and well planned, even including never-before-illustrated plumages."--Pamela C. Rasmussen, Division of Birds, Smithsonian Institution