Stoat (left) and weasel (right) - ventral (belly) view.
Stoats and weasels are often confused but distinguishing features include:
- the line between brown and white fur along the underside is straighter on stoats and patchy / wavy on weasels
- stoats have a black tip on their tails, whereas weasels do not
- stoats' tails are proportionately longer than those of weasels, whose tails are barely longer than their hind legs.
Photograph: by Ken Wright