A radio transmitter is attached to a young American Bald Eagle Aug. 22, 1988 to track its movement after it is released from a hacking tower on the shoreline of Dale Hollow Lake. The U.S. Army Corps of Engineers Nashville District conducted an Eagle Restoration Program between 1987 and 1991 in the hopes that when they took flight for the first time they would return four to five years later when sexually mature to reproduce and nest all year long.