Stoats have short legs and a long, narrow body with a coat of sandy-brown fur and a yellowish-white underside. They have a bushy black-tipped tail, which easily distinguishes them from the smaller weasel. In Scotland, Wales and the west of Britain, the stoat’s fur turns snow-white in winter and only the tip of the tail remains black. This white fur is known as ermine, hence their Latin name erminea. This fur was once used to make the ceremonial robes of kings and queens. Stoats are mainly nocturnal and are well adapted for following small mammals into their burrows. They bound along at high speed and stop every so often to sit up and sniff the air. Stoats are very playful creatures with an insatiable curiosity; they tirelessly explore holes, buildings and even people, if they sense that there is no danger.

Head-body length: 16 – 31cm
Tail length: 9 – 14cm
Weight: 90 – 445g
Lifespan: Up to 10 years


They mate during the summer and the following spring the females have one large litter of 9 – 13 kits, depending on how much food is available. Male stoats come into the nest when the kits are still young and mate with all the young females so that they are pregnant before they even leave the nest. Young stoats develop rapidly and are able to hunt for themselves at about 11 weeks old.


Mainly rabbits and small rodents, but also shrews, squirrels, birds and fish; occasionally birds’ eggs, berries and insects.


They are not fussy and will live in most places where there is sufficient cover and food, including woodland, cultivated land, hilly areas and grassland.


Foxes, owls, kestrels and occasionally cats.


Stoats are legally trapped and shot by gamekeepers because of predation of game birds.

Status and conservation

Native, common and widespread.

Population size and distribution

GB population 438,000. The population has continually increased over the last 25 years. Stoats are widely distributed throughout Britain and Ireland.

Did you know?

Stoats kill their prey with a swift bite to the back of the neck and have a fearsome reputation as bold, efficient predators.

Let's keep in touch...

We'd love to tell you about our conservation work through our regular newsletter Wildlife World, and also how you can save endangered species through volunteering, taking action or donating. You must be 18 or over. The information that you provide will be held by People’s Trust for Endangered Species. For information on how PTES processes personal data, please see our privacy policy.

People's Trust For Endangered Species

People's Trust for Endangered Species, 3 Cloisters House, 8 Battersea Park Road, London SW8 4BG

Registered Charity Number: 274206 • Site Design: Mike Leach Creative at Waters • Branding: Be Colourful

Copyright PTES 2023

- Enter Your Location -
- or -