The two attached papers might be of interest for those working with Kiwi or Weka.
Fairly obvious that the original working group mucked up by saying standard length boxes with135 mm from entrance to trap was Kiwi safe, it would have been better to have required them to be the longer Weka length boxes.
Fairly upsetting to find a kiwi with a smashed Bill still lying there in shock, also they can wander off an die in the bush and you never know.
DOC have approved the extensions to standard length Boxes as per the design covered here.
The other option I had looked was just converting double set boxes to single set to give the longer safe length
doc 200 extensions.pdf (397.0 KB)
Kiwi safe box.pdf (778.2 KB)