This set of two books is a must-have for any bird enthusiast. The first book, titled "The Audubon Society Field Guide To North American Birds: Eastern Region," is a comprehensive guide to the birds of the Eastern United States. It includes detailed information on the identification, behavior, and breeding of these fascinating creatures. The second book, "Birds of Prey," focuses specifically on the birds of prey in the Eastern region. It covers the same ground as the first book, but with a more in-depth look at the unique characteristics of these birds. Whether you are an amateur bird watcher or an experienced ornithologist, these books are sure to provide you with hours of enjoyment. They are suitable for anyone interested in the birds of the Eastern United States, and their detailed information will help you identify and appreciate these beautiful creatures.