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

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  1. david kelly

    Self-sustaining Common Crane population in the UK

    They have certainly increased in this part of southern Scotland, as passage migrants. They have become annual since 2018, whereas there had been 16 records up to then. The English population is non-migratory, although it is dispersive. That does not prove the authors' speculation, but it does...
  2. david kelly

    Self-sustaining Common Crane population in the UK

    It was in a BB article on the Scottish population. They are migratory “We believe that the Scottish recolonisation is most likely linked to recent increases in the western European and Scandinavian populations, rather than from birds originating in England. The northeastern bias in Scottish...
  3. david kelly

    Self-sustaining Common Crane population in the UK

    The Scottish population is thought to be a separate colonisation. They are probably an outlier of the Norwegian population rather than originating from England. David
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