David Allen Sibley, 1961 - David Allen Sibley son of the well-known ornithologist Fred Sibley, began seriously watching and drawing birds in 1969, at age seven. He has written and illustrated articles on bird identification for Birding and American Birds, which is now Field Notes, as well as regional publications and books. Since 1980 David has traveled the continent watching birds on his own and as a tour leader for WINGS, Inc. He is best known for his birding guides.