In 1934 he published his seminal
Guide to the Birds, the first modern field guide, which sold out its first printing of 2?000 copies in one week, and subsequently went through 5 editions. He co-wrote
Wild America with James Fisher, and edited or wrote many of the volumes in the Peterson Field Guide series on topics ranging from rock and minerals to beetles to reptiles. He developed the Peterson Identification System, and is known for the clarity of both his illustrations of field guides and his delineation of relevant field marks.
Paul R. Ehrlich, in
The Birder's Handbook: A Field Guide to the Natural History of North American Birds (Fireside. 1988), said this about Peterson:
In this century, no one has done more to promote an interest in living creatures than Roger Tory Peterson, the inventor of the modern field guide.
Peterson received every major American award for natural science, ornithology, and conservation, as well as numerous honorary medals, diplomas, and citations from America and elsewhere, including the United States Presidential Medal of Freedom and the Order of the Golden Ark of the Netherlands. In 1977, he was honored by selection by the two Swedish District lodges of the Vasa Order of America to be Swedish-American of the Year. He received nominations for the Nobel Peace Prize and honorary doctorates from numerous American universities.
He died in 1996 at his home in Old Lyme, Connecticut. Roger Tory Peterson was cremated following his death. A portion of his ashes were spread on and round Great Island near Old Lyme, Connecticut. Another portion of his ashes are buried in the Old Lyme Cemetery also known as the Duck River Cemetery. A third portion of his ashes is inurned in the Pine Hill Cemetery, Falconer, New York in the family plot where his father and paternal grandparents are buried.
The Roger Tory Peterson Institute of Natural History in Jamestown, New York is named in his honor. A critically lauded biography,
Birdwatcher: The Life of Roger Tory Peterson (The Lyons Press. 2008) by Elizabeth Rosenthal, was published for the centennial anniversary of Peterson's birth.