Lord God Bird - like finding Elvis.

"So dramatic is the ivory-billed woodpecker in flight that it is
sometimes called the Lord God Bird because stories are told that when
naturalists first set eyes on it, they were often heard exclaiming:
"Lord God!"

Frank Gill, a senior ornithologist at the Audubon Society in America,
put it even more succinctly: "This is huge. Just huge. It is kind of
like finding Elvis.""
http://news.independent.co.uk/world/environment/story.jsp?story=634044