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

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  1. J

    Sand Plovers from Oman, 02/2024

    Just searching the net and an old article by Hirschfeld, Roselaar and Shirihai (2000), indicates there are differences in both tail pattern and wind bar pattern. The tail pattern is not really visible in the flight photos, so taking the wing bar, the bar in GSP is meant to bulge out on the...
  2. J

    Sand Plovers from Oman, 02/2024

    Very interesting. I haven't got any reference books with me, but I seem to recall that species difference in tail pattern and wing-bar have also been mooted - or has this been disproven, of only works for LSP and GSP, but not TSP? It would be great to know if all possible flight features hold...
  3. J

    Sand Plovers from Oman, 02/2024

    Nice video. The only thing I would say is that GSPs in Malaysia should be 'leschenaultii' whereas birds in Oman should be 'columbinus'. I recall (but could be wrong) that that later subspecies is less 'gangly' with a shorter bill, so I think it is harder to tell from Tibetan. The GSP in the...
  4. J

    Sand Plovers from Oman, 02/2024

    I also struggled with winter plumage birds in Oman. Looking at bill length, bulbous tip to the bill, toe projection etc. I think Greater, apart from perhaps the last photo. I presume this is a different bird which looks a bit smaller billed and round headed and may be Tibetan.
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