The final print of ''Birds of America'' was published in 1838 with the help of William MacGillivray, a Scottish ornithologist. The work has been noted to mention some species which have become extinct since the time of publication, including the Washington eagle or sea eagle, which may have been seen only by John James Audubon himself. | The final print of ''Birds of America'' was published in 1838 with the help of William MacGillivray, a Scottish ornithologist. The work has been noted to mention some species which have become extinct since the time of publication, including the Washington eagle or sea eagle, which may have been seen only by John James Audubon himself. |