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

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  1. Corvus cornix

    Through the Wire

    Hi and thanks for posting. I've just listened to the programme, an interesting and entertaining introduction to the work of these remarkable men. Far more about their astonishing achievements can be found in the book "Birds in a Cage" by Derek Niemann. A far more comprehensive account of the...
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