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

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  1. J

    Blue Tit & Great Tit sharing a nest box

    Unfortunately in my case the Blue Tits didn't return to complete the nest. The Great Tits built their nest in one of my other boxes. During the colder months, the two Great Tits overnighted separately, one in the Blue Tits box and the other in another box that they eventually nested in. Layed 9...
  2. J

    Blue Tit & Great Tit sharing a nest box

    I have a nest box where a blue tit is preparing a nest during the day, but a great tit is roosting overnight in the same box! Has anyone ever seen this behaviour before?