Wild America by Roger Tory Peterson

On an April day in 1953, renowned American naturalist, author, and illustrator Roger Tory Peterson met his British friend James Fisher, an authority on seabirds, in Newfoundland. There they began a strenuous and thrilling hundred-day field trip around the edge of the continent. Part travelogue, part epic natural adventure, their richly illustrated record is "the superlatively good product of ideal circumstances" (Chicago Sunday Tribune).