North American Owls : Biology and Natural History, 2nd Edition

Paul Johnsgard has completely updated his highly praised 1988 edition of North American Owls, and by adding twelve species of Mexican owls he now covers the entire continent of North America. With detailed accounts of the nineteen owl species that breed north of Mexico, this comprehensive natural history includes thorough explanations of evolutionary relationships, ecology and distribution, anatomy and physiology, and reproductive biology.