"To some, he was "Professor Nuts Peterson," but to the world he was Roger Tory Peterson. For the birds: the life of Roger Tory Peterson tracks this American artist, activist, and passionate bird lover from his days as a child, to art student, to creator of the Peterson Field Guides, to global environmentalist. Peterson's guides were revolutionary--simply written and drawn for everyone to enjoy the birds, animals, and plants of the outdoors. Millions...