Western Trailside Birds

More than 100 species—all the most commonly seen birds along mountain hiking trails of the western United States and Canada.
Peterson FlashGuides are the most compact and convenient field guides ever made: slim as road maps and ideal for hikers, bikers, canoeists, or anyone who wants to travel light.

More than 100 species—all the most commonly seen birds along mountain hiking trails of the western United States and Canada.
Peterson FlashGuides are the most compact and convenient field guides ever made: slim as road maps and ideal for hikers, bikers, canoeists, or anyone who wants to travel light.

Roger Tory Peterson, one of the world's greatest naturalists, received every major award for ornithology, natural science, and conservation as well as numerous honorary degrees, medals, and citations, including the Presidential Medal of Freedom. The Peterson Identification System has been called the greatest invention since binoculars. These editions include updated material by Michael O'Brien, Paul Lehman, Bill Thompson III, Michael DiGiorgio, Larry Rosche, and Jeffrey A. Gordon.

Roger Tory Peterson, one of the world's greatest naturalists, received every major award for ornithology, natural science, and conservation as well as numerous honorary degrees, medals, and citations, including the Presidential Medal of Freedom. The Peterson Identification System has been called the greatest invention since binoculars. These editions include updated material by Michael O'Brien, Paul Lehman, Bill Thompson III, Michael DiGiorgio, Larry Rosche, and Jeffrey A. Gordon.