Ten seconds of video that rocked the world of ornithology -- featuring a fuzzy but painstakingly analyzed ivory-billed woodpecker sighting -- is now available on the Web site of Cornell's Lab of Ornithology at http://www.birds.cornell.edu/ivory/rediscovery/support/.

The video, which was recorded by David Luneau of the University of Arkansas-Little Rock, shows a somewhat blurry image of a black-and-white bird in flight. Along with eyewitness sightings and acoustic recordings of the woodpecker's characteristic calls and double-raps on tree trunks, the video serves as one of the main pieces of evidence that the bird has survived after 60 years with no documented sightings.

The posting of the video marks a new step in the Lab of Ornithology's effort to include the public in the scientific process of how the researchers verified the ivory-billed woodpecker's existence. Skeptics have argued that the video depicts a smaller, common, black-and-white pileated woodpecker.

"The Web site gives anyone the opportunity to look at the video a little better than in the past and follow along in the discussion of why we think it is an ivory-billed woodpecker and not a pileated," said John Fitzpatrick, director of the Lab of Ornithology.

The site also features figures, demonstrations, an audio recording from 1935 and blow-ups of the video for frame-by-frame analysis. There are also a number of clips of pileated woodpeckers that the public can compare with the four-second ivory-billed woodpecker video.

The online material adds significantly to the evidence presented in a peer-reviewed article forScience magazine published in April 2005.

"Even after the original announcement of the rediscovery, we kept going over our evidence and finding new ways to put it to the test -- not only to answer questions others might have, but to continue to test the veracity of our own conclusions," said Fitzpatrick.

The unveiling of online materials comes on the heels of the second ivory-billed woodpecker recovery team meeting in Brinkley, Ark., Feb. 6-8.