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

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  1. J

    Bean Goose group

    This makes the results somewhat confusing to me. If serrirostris is not sampled, then presumably the results only actually resolve the relative position of rossicus, fabalis and brachyrhynchus. Suggesting that fabalis and serrirostris should be treated as different taxa relies on an assumption...
  2. J

    Bean Goose group

    I just noticed this elsewhere on the forum: http://www.birdforum.net/showthread.php?t=169459. Check post #13 by Justin Jansen. If I read this correctly, the names for fabalis, serrirotris and middendorffii all refer to individuals which cannot be unambiguously assigned to a particular taxon...
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