The Encyclopedia of Birds details various aspects of birds' lives and provides insights into humans' fascination, and complicated relationship, with birds of all kinds. This nine-volume set presents a comprehensive look at the world's most interesting birds, showing their extreme diversity as well as common features including wings, feathers, and hollow bones. Highly illustrated with full-colour photographs of birds in the wild and outstanding diagrams, this valuable reference offers concise, clearly organized information on birds, including physical features, diet, distribution, behaviour, habitat, and more. A useful source of basic information for students, researchers, and bird lovers alike, The Encyclopedia of Birds understand and appreciate these important, and in some cases, endangered, life forms.