Western Bird Guide: Birds of the Rockies and West to the Pacific

An illustrated field guide offering species-by-species accounts of birds found from the interior Rocky region westward to the Pacific, organized by orders and families and following American Ornithologists’ Union numbering. Entries give average measurements, seasonal plumage changes, distinguishing field marks, geographic range, nesting habits and egg descriptions, and mention similar subspecies when relevant. Practical identification advice highlights bill and eye characteristics and typical habitats, and the text recommends methods for recording local sightings and dates. Plates and descriptions work together for field use, and the guide notes variability in size and the usefulness of keeping a separate pocket copy.