Frederick Lincoln called Wells W. Cooke the ‘father of bird migration studies in North America,’ but his identification of the four North American Flyways was a landmark in conservation history. Lincoln entered the U.S. Biological Survey in 1920, and was assigned to manage the fledgling federal bird banding program. It was with the data collected from this program that delineated his four year flyway routes. Lincoln also was a pioneer of aerial survey of a wintering duck population in 1935.