JOHN KRICHER is Professor Emeritus of Biology at Wheaton College, Norton, MA, where for 48 years he taught ecology, ornithology, and vertebrate evolution. He is a Fellow in the American Ornithologists Union and is past president of the Association of Field Ornithologists, the Wilson Ornithological Society, and the Nuttall Ornithological Club. He has served on the board of the American Birding Association. Gordon Morrison is a well-known naturalist whose work has been praised by Roger Tory Peterson as "Marvelous, beautiful, excellent . . . Morrison's work is so inspiring that I wish such clear material was available when I was slowly learning ecology. . . . We owe a debt of gratitude to Gordon for his interpretive skills as an artist. He is a superb teacher who uses visual methods." Robert Bateman likened his work to that of Albrecht Durer and Andrew Wyeth. Gordon Morrison makes his home in Massachusetts. JOHN KRICHER is Professor Emeritus of Biology at Wheaton College, Norton, MA, where for 48 years he taught ecology, ornithology, and vertebrate evolution. He is a Fellow in the American Ornithologists Union and is past president of the Association of Field Ornithologists, the Wilson Ornithological Society, and the Nuttall Ornithological Club. He has served on the board of the American Birding Association.