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For 50 years the ivory-billed woodpecker has been widely considered extinct. But the Elvis of the bird-watching world is alive in eastern Arkansas, bird experts announced today.(Watch a video on the discovery from the Nature Conservancy [requires Windows Media Player ].).his really is the holy grail.. Among the world's largest woodpeckers, the ivory-bill is one of six North American bird species suspected or known to have gone extinct since 1880. The last conclusive sighting of the woodpecker was in Louisiana in 1944.
The ivory-billed woodpecker ranks among the largest woodpeckers in the world and is the largest in the United States. The closely related and likewise possibly extinct imperial woodpecker (C. imperialis) of western Mexico is, or was, the largest woodpecker. Cuban ivory-billed woodpecker (Campephilus principalis bairdii or Campephilus bairdii), now believed to be extinct. 2  American ivory-billed woodpecker (Campephilus principalis principalis or Campephilus principalis), described here.