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

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  1. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    I just found this in a book I bought..... also descriptions of the abundance of Passenger Pigeons.... Listed as Livory-billed Woodpecker on the plate, but Ivory in the text (which identical to that I published earlier on the thread (from and earlier edition of the same book). The one about a...
  2. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    I was thinking that! Seems no more or less credible than any other recent supposed sighting thus far!
  3. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    don't look at individual frames, look at the moving gif - the overwhelming impression is of a rather stocky and short-winged bird
  4. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    What about the structure, is that glare too?
  5. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    Nice work Dave.
  6. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    That does explain why it looked so like a Pileated!
  7. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    and...... whatever else, do remember that its not impossible for a Pileated to show a "white shield", if that is indeed a feature on the bird.
  8. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    How close were your estimates Dave? Genuine interest I assure you.
  9. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    Well there are certain uncertainties!
  10. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    I was checking through a book I'm selling on Amazon (Tropical World by Hartwig 1873 if anyone is interested), when I came across the following!
  11. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    A year or so ago I did go to the trouble of posting links to accounts of searches for Ivory-billed Woodies that did suggest that they were anything but hard to locate. Here they are http://www.birdforum.net/showpost.php?p=1079050&postcount=12633...
  12. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    Ok Dave you have got me on a point of grammar Whether or not a written description could be adequate is a debate to be had once there is a such description that is unequivocally describing and Ivory-billed Woodpecker. The first hurdle hasn't been passed yet.
  13. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    Spoken accounts are indeed just hearsay. There are no written descriptions that pass muster. That is fact.
  14. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    WHAT???? There is absolutely nothing in common! In one case there is well-defined multi-observer photographic evidence... that still isn't/may not be enough to confirm the record, and in the other there is a whole great heap of heresay.... Or do you mean that in all likelihood they are both...
  15. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    .......and there is current discussion that the multi-observer and well documented/photographed/videoed records of SBC may be in inadequate to prove that it still exists.
  16. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    I was thinking of mounting a graduated marker pole in reflection pool.... recording the flight of a released pigeon with a couple of reflective makers on them and using a 6 camera high definition 3-d recording system like this...
  17. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    To be fair to Dave, his estimate is for the vector (ie including the gain in height) The primary sources of error are the guestimates involved in estimating the height of the camera and the height of the tree.
  18. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    You know Dave, I'm so tempted to go and video a bird over a reflective surface, in known conditions, and test you out :)
  19. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    I love the effort you have put in btw...
  20. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    I'll give you 20% :)
  21. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    Hey, the bird is irrelevant here... the science and trigonometry is fascinating!
  22. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    But getting slower all the time :) Is it still 4 ft off the water?
  23. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    Hmmm! Pushing water uphill in a leaky wheelbarrow with this one with some people it seems. I can't rule out lesser scaup either Dave... though the jizz does still remind me of a Kingfisher
  24. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    This is the bird that the observer thought was a Wood duck until he improved the video and saw the putative trailing edge.... or did I dream that bit?
  25. Jane Turner

    Ivory-billed Woodpecker (formerly updates)

    In exactly the same horizontal plane as the bird (i.e. on a precise level with its exact flight path)???? If not we are in guesswork territory again, even if the bird was sharp enough to determine where it started and ends in any of the frames Of course Wood ducks are about 30 inches in wing...
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