A fascinating look at the more than 60 species that scientists classify as eagles. Large, handsomely illustrated, visually striking, thoroughly researched, and impressive in its attention to detail, this is an outstanding science title. Sattler provides information on evolution, anatomy, habits and habitat, courtship, eggs and eaglets, and efforts of humans to preserve endangered species. A glossary of eagles provides sketches and information on 60 species, giving common and scientific names, wing span, weight, color and special features, diet, location, call, courtship, and incubation period for eggs. Meanwhile, close-up sketches show adaptations from the hook and bow barbules (which strengthen tail feathers) to the special spicules on the toes of fish catchers that hold slippery prey. The author also notes that the crystalline structure of the eagle egg makes it easier to break the egg from the inside out, and that the largest known nest of an eagle was a 8 feet across, 20 feet deep, and weighed 2 tons. Includes listing of eagles by groups and genera, further reading and index.