Identifying a nest, egg or nestling found in the field is a daunting and difficult task. Here is a comprehensive guide to the breeding habits of over 600 North American birds. Color and line illustrations show the nests, eggs, and selected nestlings. The text provides detailed descriptions of how, when and where the birds usually build their nests. The book also covers the incubation, brood size, and the hatching and raising of the babies. Both professional and amateur birders will find this volume useful.