David Allen Sibley (born 1962, New York)

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.

The son of Yale University ornithologist Fred Sibley, David Sibley began birding in childhood. A largely self-taught bird illustrator, he was inspired to pursue creating his own illustrated field guide after leading tours in the 1980s and 1990s and finding that existing field guides did not generally illustrate or describe alternate or juvenile plumages of birds, citing European wildlife artist Lars Jonsson as a great influence on his own work.

He is married, with two sons, and currently lives in Concord, Massachusetts. He is not related to ornithologist Charles Sibley