For more than a year a select group of the nation's top birders searched the swamps of Eastern Arkansas in complete secrecy. During these clandestine months the searchers chalked up 15 unprecedented sightings of Ivory-billed woodpeckers, a species not documented in Arkansas for over one hundred years. Capturing an eyewitness encounter on camera was the mission of Tim Barksdale, an ex-investment banker turned intrepid wildlife photographer. Here is what he saw...