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

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  1. jurek

    "Lost" birds. Again

    Try searching for negative reports, that is whether anybody visited localities, tried for these species and failed. And checking whether there have been bird tours or reports on cloudbirders from ranges of these birds (DRC, Somalia, highlands of New Britain etcetera). Even better would be...
  2. jurek

    "Lost" birds. Again

    Perhaps you can additionally establish, whether a reasonable effort was made to find these birds in the first place. For some remote / politically unstable regions, no serious searches or trips were made. Absence of evidence is not evidence of absence. By extension, as no scientist visited...
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