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David Allan Sibley,

David Allan Sibley, appears in the following:

Please Explain: Trees

Friday, September 18, 2009

You may have noticed that leaves have started turning, marking the end of summer. On today’s Please Explain we'll find out why leaves change color and everything else about trees, with Jessica Argate, Forest Manager, New York Botanical Garden, and David Allan Sibley, author of The Sibley ...

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