Uncommon but periodically found along braided rivers.
Similar in colour and general appearance to stoats, weasels are much less common and have distinctly shorter tails. Like stoats, there is a clear demarcation in colour from the reddish-brown fur on their backs and their yellow-white belly fur. Male weasels are 200mm long and weigh 130g. Females are 170-240mm and weight 60g. In alpine areas, some stoats develop a pure white winter fur, though this is rare in New Zealand. They are known to be predated by cats, an aspect of the complex predator guild not well-understood on braided rivers.
While they are not as much of a problem as stoats, they are also agile, excellent climbers, that hunt at any time, day or night