This book is the rich legacy of a fifty-year love affair with owls, an incomparable guide to all major North American species, and a splendid compendium of information, anecdotes, and personal discoveries about the order Strigiformes. For each kind of owl the book provides all the essential details os nesting methods, hours of activity, calls, and food habits. Plus nearly 100 superb photographs, culled from the author's collection and from the work of other owl specialists that make it easy to identify owls in the field.