APW19980424.1201 NEWS NEWSWIRE Leftist rebels freed an ailing American woman after holding her hostage for a month in rugged jungles south of the capital but still held two other Americans abducted while on a bird-watching tour. Louise Augustine, 63, a former nun and retired teacher from Chillicothe, Illinois, was turned over by the Revolutionary Armed Forces of Colombia, or FARC, to a government and Red Cross commission near this town, 60 miles (100 kilometers) southeast of the capital, said Carlos Batallas, an International Red Cross representative.