Some ornithology books are one-offs. How would one review Dawson’s Birds of California, or Pyle’s Identification Guide to North American Birds? Such works fall into the category of “here’s everything I know” and are as much a reflection of the author as the material. There’s also the phenomenon of a researcher’s “permanent place”—Alexander Skutch in Costa Rica, Glen Woolfenden in central Florida— your mental list of these pairings is probably as long as mine, since a researcher’s geographical setting frequently becomes inextricably linked to his or her output. Scott Rashid, who majored in art in college but who has spent his entire career in ornithology, is one such place-expert. His place is the Rocky Mountains of Colorado, and Small Mountain Owls is the culmination of four decades of banding, photographing, rehabilitating, and searching for the nests of owls around Rocky Mountain National Park.