The Grail Bird: Hot on the Trail of the Ivory-billed Woodpecker

What is it about the ivory-billed woodpecker? Why does this ghost of the southern swamps arouse such an obsessive level of passion in its devotees, who range from respected researchers to the flakiest Loch Ness monster fanatics and Elvis chasers? Since the early twentieth century, scientists have been trying their best to prove that the ivory-bill is extinct. But every time they think they've finally closed the door, the bird makes an unexpected appearance. It happened in the 1920s, and it’s happened in almost every subsequent decade. For more than 60 years, each sighting has been met with ridicule and scorn. Respected researchers and naturalists have been branded as quacks just for having the temerity to say that the ivory-bill still exists. Yet the reports still trickle in. Is there any truth to these sightings, or are they just a case of wishful thinking, misidentification, or outright fabrication?