
Cache River National Wildlife Refuge, Arkansas. Photo © Clark Jones/Cornell Lab of Ornithology |

Big Woods Conservation Partnership project volunteer, Jim Fitzpatrick with his dog, Drake, set off to search for ivory-billed woodpeckers in the Cache River National Wildlife Refuge, Arkansas. February 2005. Photo © Mark Godfrey/TNC |

Wearing camouflage, Bobby Harrison, Oakwood College associate professor, searches for ivory-billed woodpeckers in the Cache River National Wildlife Refuge, Arkansas. March 2005. Photo © Mark Godfrey/TNC |

Oakwood College Associate Professor Bobby Harrison hangs a decoy that he carved of a female ivory-billed woodpecker (holding a grub in her beak) on a tree in the Cache River National Wildlife Refuge in Arkansas. The decoys are used as part of the Big Woods Conservation Partnership search effort. March 2005. Photo © Mark Godfrey/TNC |

Bobby Harrison, Oakwood College associate professor, holds mechanical models of pileated (left) and ivory-billed woodpeckers that the team used to help verify possible video recordings of the ivory-billed woodpecker in the Cache River National Wildlife Refuge in Arkansas. March 2005. Photo © Mark Godfrey/TNC |

Colorized digital image of ivory-billed woodpecker at nest. Image © Arthur A. Allen/Cornell Lab of Ornithology |

Painting of ivory-billed woodpecker on tree. Painting © Arthur A. Allen/Cornell Lab of Ornithology |

Ivory-billed woodpecker, Singer Tract, Lousiana, 1935. Photo courtesy of David Allen |

Dutch scientist Martjan Lammertink searches for ivory-billed woodpeckers from a blind in the Cache River National Wildlife Refuge, Arkansas. March 2005. Photo © Mark Godfrey/TNC |

University of Arkansas professor David Luneau searches for ivory-billed woodpeckers from his canoe in the Cache River National Wildlife Refuge, Arkansas. March 2005. Photo © Mark Godfrey/TNC |

Gene Sparling, a kayaker who first saw the ivory-billed woodpecker, compares a hole found in a dead tree in the Cache River National Wildlife Refuge in Arkansas to a chart created by Dutch scientist Martjan Lammertink of holes created by pileated woodpeckers (left side of chart) and ivory-billed woodpeckers. March 2005. Photo © Mark Godfrey/TNC |

Scott Simon (right), The Nature Conservancy's Arkansas State Director, and naturalist filmmaker Timothy R. Barksdale search for ivory-billed woodpeckers in the Cache River National Wildlife Refuge, Arkansas. August 2004. Photo © Mark Godfrey/TNC |

Gene Sparling, a kayaker who first saw the ivory-billed woodpecker, continues to search for the bird in the Cache River National Wildlife Refuge, Arkansas. August 2004. Photo © Mark Godfrey/TNC |

A tree with bark and wood stripped from it is possible evidence of the presence of the ivory-billed woodpecker in the Cache River National Wildlife Refuge, Arkansas. February 2005. Photo © Mark Godfrey/TNC |
|