A mouse is a small animal that is often difficult to identify precisely. There are about 20 species of mice in Estonia. Five of these species may enter homes. There are two species of rats in Estonia: the brown rat and the black rat.
Rats are much larger than mice. An adult mouse is about the size of a large glue stick. An adult rat is larger, about the size of a 0.5-liter bottle. Size helps to distinguish them.
If the animals are not visible, they can also be identified by their droppings. Mouse droppings are smaller than one centimeter. Rat droppings are larger than a centimeter.
Mice and rats usually do not live in the same house. The rat is larger and stronger, drives mice away, and may attack them.
If mice can no longer be poisoned, other methods can be used. First, before winter, check that the house has no holes or cracks through which mice can enter. Second, keep food properly stored so that animals are not attracted.
Traps can be used to combat mice. If a live trap is used, the animal should be taken far away so it does not return. After handling traps, hands should be washed thoroughly, as animals may carry viruses.
A good solution against mice is a cat. Mice also dislike strong smells such as peppermint, cinnamon, eucalyptus, and citrus.
Zoologist Joosep Sarapuu does not recommend poisoning. It can be dangerous to both humans and other animals. A poisoned animal may die in a hard-to-reach place and create an unpleasant odor.