This is an easy-to-read comprehensive book on birds covering all aspects of bird behavior including the number of bird species, endemic bird species, the classification of birds, extinct birds, eating and drinking, feathers and plumage, grooming and preening, eyesight, hearing, sense of smell, bills and beaks, feet, types of vocalization, non-vocal communication, types of flight, hunting techniques, courtship and mating, territories, nesting, migration, intelligence and learning, collective nouns for groups of birds of the same species, answers to commonly asked questions about birds...