David Allen Sibley (born 1962, Plattsburgh, New York) is an American ornithologist. He is the author and illustrator of The Sibley Guide to Birds, considered by many to be the most comprehensive guide for North American field identification.
Read more about David Allen Sibley: Life and Work, Publications
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“I am not afraid that I shall exaggerate the value and significance of life, but that I shall not be up to the occasion which it is.”
—Henry David Thoreau (1817–1862)