Backyard Birds: Describes the physical characteristics, behavior, voices, and habitats of a variety of common birds, arranged by their color. Includes the Peterson System of identifying birds by their unique markings. A Backyard Birding Adventure: What's In Your Yard?: Have you ever looked out of your window and wondered what all of that chirping was about? Where those vibrant colors were coming from? What kind of bird was visiting your porch, your...