Native and listed as Least Concern on the IUCN global Red List of Threatened Species.
Widespread throughout England, Wales and Scotland, but absent from Northern Ireland.
Mustela nivalis
2 years
17 - 22cm
3 - 5cm
55 - 130g
Weasels are Britian’s smallest and most numerous carnivores. They are reated to otters and stoats, which is obvious due to their long body and short legs. They have a brown back and a white throat and belly, with shorter tail than a stoat’s. They live in various habitats such as woodland, grassland, moorland and farmland. Their diet consists of mice, voles, and small birds and they need to eat roughly a third of their own body weight daily. Weasels are thought to be common, but there is a lack of reliable evidence in their numbers. The loss of hedgerows across the UK is a factor that could have a negative impact on this species because they use them for cover when moving around their territory.
Specimens can be analysed all year round. Most visible in spring when the snow has melted but they still have their white, winter coat. Most active at night.