Peterson Field Guide to Birds of Western North America by Roger Tory Peterson (5th Edition) mya update this picture but they leave plenty of

but they leave plenty of clues behind-- especially tracks

—David Allen Sibley

Written and illustrated by David Allen Sibley

brilliant birds

he received twenty-three honorary doctorates

Peterson Field Guide to Birds of Western North America by Roger Tory Peterson (5th Edition) mya update this picture but they leave plenty ofKnown as the world's most famous birder and creditied with bringing bird watching to the masses, Roger Tory Peterson created the Peterson Field Guide series, setting the standard by which all subsequent field guides were measured. An eloquent champion of the natural world, he received twenty three honorary doctorates, the Presidential Medal of Freedom, and two nominations for the Nobel Peace Prize. Illustrations, species accounts, and maps are all in