This fascinating and beautiful guide provides detailed information and over 160 striking photos and drawings of four species of small mountain owls found in America's Rocky Mountains, with special focus on the inhabitants of the Rocky Mountains National Park: the Flammulated Owl, Northern Pygmy-Owl, Northern Saw-whet Owl, and Boreal Owl. The lives and ranges of these tiny predators are detailed, including information concerning their anatomy, coloration, vocalizations, ranges, courtship and nesting behaviors, egg laying, fledgling raising, hunting habits, diets, mortality, longevity, and much more. The engaging text reflects the author's passion for these tiny owls, some small enough to perch comfortably on a number two pencil, and provides details about the recovery and restoration to health of injured small mountain owls. The book ends with a useful glossary of scientific names and a detailed bibliography. This book will be a treasured reference for anyone interested in the avian world.