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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

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    New Ivory-billed Woodpecker info

    The comments from the usual know-it-alls reveal that they have never stepped foot into the habitats of the Ivory-billed Woodpecker and have no idea what it's like to search for this bird. It's ignorant to suggest that those who have reported these birds and/or obtained evidence have engaged in...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    I want to thank Jeff Woad for raising a good point. Attempts by others to distract with irrelevant and nonsensical comments didn't work -- there were lots of downloads of the newly discovered event in one of the videos. It is good to know that some bird watchers care about conservation. The...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    I will mention something about my credentials that is relevant to this topic. The rediscovery of the Ivory-billed Woodpecker opened up an opportunity for anyone fortunate enough to obtain video footage of these fascinating birds to make new discoveries about them. Most ornithologists failed to...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    The bird in the 2008 video was in a particular type of flight, cruising flight, not "the full range of flight." There is a substantial literature on avian flap rate for this type of flight (e.g., papers by Tobalske, Pennycuick, and a group at Oxford that are cited in my papers). Pennycuick...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    Just to set the record straight, I am using the account that I set up on Sept. 17, 2005 (as you or anyone else could easily check). Where did you come up with the nonsense that I was using multiple accounts? It's a shame that you are apparently incapable of making a rational contribution to the...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    After being peer reviewed by ornithologists, my work was published in journals that are run by publishers such as Nature, Taylor & Francis, the American Institute of Physics, and Elsevier. It is utterly ridiculous to claim that those publishers are predatory. This is the kind of nonsense that...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    It is amazing what kinds of nonsense people will make up. Here is what a leading ornithologist, Bret Tobalske, said about the flap rate after analyzing that video: "Wingbeat frequency of 10-12 Hz is approximately double that of the PIWO (5.2 +/- 0.4 Hz). So, if my identification of fields is...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    A comparison of the tree specimen with one of the photos from 2006 is attached. Everything lines up, and there are a few patches of lichen just above and below the right end of the meter stick that were still recognizable in 2008. There is no question that the large woodpecker in that video is...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    I have never evaded any issue. All three of the videos and their analysis have been laid out in a series of papers. Everything used in those arguments (wing motion, flight path, flap rate, flight speed, field marks, body proportions, behaviors, etc) is well resolved in the videos. Each of the...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    Yet another sophomoric comment from someone who is incapable of actually addressing the evidence.
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    What do you know about my credentials as a scientist?
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    The tree specimen was collected after it blew down in the fall of 2008. It was actually cut to include one additional fork. It should be clear from the attached photos (including two that were taken shortly after the video was obtained in 2006) that it's the same tree.
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    I didn't think you would be able to back up your claim. The videos don't just show dark blobs. For example, an avian artist whose depictions of Ivory-billed Woodpeckers have appeared on the covers of major ornithology publications made the following comments on one of the videos: "I like the...
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    This claim is based on what? Credible people don't make such statements unless they can back them up. What woodpeckers that occur north of the Rio Grande are larger than a Pileated Woodpecker? What birds have the flights and other characteristics that appear in the other video?
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    Such a comparison would make no sense. It is the tree on which the bird was perched in the video. It was collected (with a permit from the Louisiana Department of Wildlife and Fisheries) after it blew down. It was cut to include the two forks in order to facilitate scaling.
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    If it is true, as you are claiming, that such a case could be made for the existence of anything, then I would like to see you make a case for any species other than the Ivory-billed Woodpecker for the videos that are discussed here or in any of my papers.
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    If anyone here is interested in this magnificent bird and capable of having a serious discussion that rises above the sophomoric level, it would be easy to download and study the video clips.
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    Credible people don't make such statements unless they can back them up. What woodpeckers that occur north of the Rio Grande are larger than a Pileated Woodpecker? What birds have the flights and other characteristics that appear in the other video?
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    Ivory-billed Woodpecker: takeoffs with deep and rapid flaps + wing noises

    After the bird watching community failed for decades to document a magnificent bird that resides in an easily accessible region, many bird watchers reacted with hostility toward those who spent long periods of time in the field and managed to find them. Other than how it could impact...
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    YouTube videos on habitats, Peru, IBWO, 4K, etc.

    As discussed below, I have updated three bird related video playlists on YouTube. Some of the videos were posted previously in 1080p, but they have now been upgraded to 4K. I wasn't aware until recently that the difference between 1080p and 4K on YouTube is more than just the number of pixels...
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    Ivory-billed Woodpecker: Debunking the Critics

    Over the years, there have been many posts on birdforum about the Ivory-billed Woodpecker. Despite a lack of quality in these discussions, I have posted occasional updates about my work on this topic for any bird watchers who might be interested in this magnificent bird and its conservation. I...
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    new paper on the Ivory-billed Woodpecker

    In this thread and others during the past decade or so, many birders have displayed hubris and ignorance in discussions of the Ivory-billed Woodpecker. Making comments on evidence that they admittedly haven't even seen. Posting comments by David Sibley that don't have any relevance to the...
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    new paper on the Ivory-billed Woodpecker

    As stated previously, I'm not going to participate in discussions with bird watchers who repeatedly demonstrate a lack of logical reasoning skills, make comments on data they haven't bothered to study, and think they know it all when in fact they aren't aware of basic facts. However, I will...
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    new paper on the Ivory-billed Woodpecker

    In closing out my participation in this discussion, I need to address a claim that bird watchers are my peers. Nothing that anyone has posted here indicates that they are my peer. Not even remotely close. There is nothing wrong with that, but I can't allow uninformed claims about the...
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    new paper on the Ivory-billed Woodpecker

    I don't know why you would be looking at avi files. All of the movies in the supplemental material of my papers are in mov and mp4 format. The analysis of the 2008 video does not require any information on the flap rate of the Ivory-billed Woodpecker. It is based on ruling out the Pileated...
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