The weasel is a highly active predator found throughout the United Kingdom and often confused with its close relative, the stoat. However, it is significantly smaller than the stoat, being the smallest European carnivore, and it never has a black tip to its tail. It also does not turn white in winter anywhere in Britain. Weasels reach a length of 23cm with a short tail of up to 6.5cm and they weigh up to 170g. The males are much larger than the females. Weasels are very slim and elongated, with a brown back and white chin and belly. Unlike the stoat, the border between the two colours is irregular and wavy. Weasels eat mainly mice, voles and shrews, but will probably kill and eat any other prey that they can master, including young rabbits, small birds and eggs.