Ken Rosenberg talks about the Luneau video at the AOU meeting here.
Although he says he was hoping he wouldn't have time for questions, he did take two. I think his answer to the second question is very significant:
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Q: Have there not been sightings of several Pileated woodpeckers with white elsewhere on the wing, perhaps on the flight feathers?
A: The question is whether there have there been sight records of unusual Pileated Woodpeckers with extra white on the wing. This is really something we were worried about and addressed very carefully. Could this bird be an aberrant Pileated woodpecker? There are reports of birds from this region of Arkansas, and the pictures that I've seen, and Jim Bednarz, who might be in the audience, is the one who's been seeing these birds most frequently. There's a picture of a Pileated perched that is molting or missing its wing coverts and exposing a larger portion of white than you would normally see on a perched bird. The bird does not have more white than a normal Pileated, but you're seeing more white on the perched bird because of the missing coverts. We are seeing nothing that would produce a pattern especially symmetrically on both wings, extensive white across the secondaries, that could produce a pattern similar to what we're seeing in the video.
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Note that Rosenberg talks about birdS (plural) with extra white on the wing, and also pictureS (plural). He then describes only one abnormal Pileated in detail. It would be nice if Cornell would release more details about the other abnormal Pileateds encountered by the search team, and also release the pictures that Rosenberg mentioned above.
I think it's very likely that Cornell obtained good looks and even pictures of Elvis, but since it was obviously a Pileated when seen well, there was no excitement.
Remember, according to the Arkansas Times, Bednarz has seen several Pileated woodpeckers with an abnormal amount of white wing feathers in the Cache River refuge, and he believes there is an isolated population of Pileated woodpeckers in the Cache river bottoms who have an uncharacteristic amount of white on their wing feathers.
In early September, I emailed Bednarz to ask for details on these abnormal birds, but I haven't yet received a response.
I think it's fair to ask why Cornell didn't mention these abnormal Pileateds in their original Science paper, and I think it's fair to ask why they are not mentioned in "The Grail Bird".
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