Small Mountain Owls is a small coffee-table book that details the life histories of the Northern Pygmy Owl, Flammulated Owl, Northern Saw-whet Owl, and Boreal Owl in the western United States, primarily in Rocky Mountain National Park. The book’s text is divided into four parts, with well-ordered accounts for each of the four species that address identification, anatomy, coloration, vocalizations of adults and fledglings, distribution and range, territory size, hunting habits, diet, nesting, courtship behavior, interactions between adults and nestlings, longevity, mortality, and more.