Stoat bite marks on a chewcard.
Stoats have a pair of long pointed canine teeth on the upper and lower jaw, which leave pairs of circular puncture marks. Where a pair of puncture holes can be identified, the distance between them in stoats is in the range of 7 - 9 mm. This measurement can distinguish them from similarly paired circular puncture marks left by weasels, stoats and cats.
Photograph: courtesy and © Manaaki Whenua – Landcare Research