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Jon L. Dunn

JON L. DUNN is a leading expert on the identification and distribution of North American birds. He is a consultant for Birding magazine, and former chair of the American Birding Association's Checklist Committee. JONATHAN ALDERFER is chief consultant for National Geographic's Birding Program and a widely published author and field guide illustrator. One of the nation's foremost birding artists, he is well known for his authority on North American birds and his expertise as a field birdwatcher.