The entire birding world, from expert ornithologists to backyard enthusiasts, has been waiting for Sibley's work to be made available in a field-usable form. Containing the renowned artist's superbly lucid and comprehensive text, this guide features more than 6,500 of his detailed paintings. Full color. 544 pp. National media appearances. 10-city author tour. National print ads. 100,000 print. (Nature/Field Guides)