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

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  1. jurek

    Breeding birds in Europe which follow national borders

    Resolution of 50x50 km makes it difficult to see, but it looks like both species stop at those squares which cross the national borders. Further north, Eagle Owls occur on almost all lowland Germany, but are scarce in lowland Poland. If there was simply a habitat change, line coastline of...
  2. jurek

    Breeding birds in Europe which follow national borders

    I recently looked that the maps of the splendid EBBA2 atlas, and distribution of many birds exactly follows national borders. Not necessary borders which follow some geographical barrier. Eagle Owl: present everywhere, practically 100% in Germany, Czechia, Slovakia, but stops at borders of...
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