The pair were relaxing at a lake in Napa County, California, when a man in a hooded costume with the Zodiac emblem sewed on it told them he was a prison escapee.
The safe houses, known as " stations, " were about 10 to 15 miles apart, although they were located closer together as the escapees got farther north and became more tired.
Sometimes they escape, he said. Sweet said he believes this duck is an escapee. If it were wild, he added, traditional bird watchers -- often called birders -- would be " very excited" . And they are not.