Environment: Comeback for King Penguin

Roger Tory Peterson completes a sparkling new bird guide

When his first Field Guide to the Birds of Eastern North America appeared in 1934, Roger Tory Peterson, then 25, had no inkling of what he was on the verge of creating. The guide and two subsequent revisions sold an extraordinary 3 million copies. Its clear drawings, with black lines pointing out distinctive features, and simple explanatory text helped expand bird watching from the pastime of a select few to a hobby that now engages more than 20 million Americans.

Peterson's guide also played a role in creating today's environmental awareness; as he explains,...

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