Ammonia has a very strong odor. It will deter rodents, including mice and rats. It is a more natural deterrent than poisons.
get a cat,block any small holes near outside pipes.
Outdoor cats hunt mice through sight and scent. When a cat senses a mouse, the cat hunches down and stalks it slowly, pouncing on it when it is close enough.
Scents such as food attract mice.
The mice hung a bell around the cat's neck.
I have read that the scent of a ferret (and also ferret poop) would drive away mice and rats. As someone that has the seasonal intrussion of field mice into our house, and also has a house full of ferrets, I can tell you that they are NOT scared away by the scent of ferrets...at least not the domestic ferret that people keep as pets. I run a ferret shelter, and have had up to 45 ferrets in the shelter at one time. Each fall and winter, we get an influx of field mice in the shelter itself as well as the main house. We have ferrets that have free run of the house, and this does not deter the mice from stealing food from their bowls.
In the wild, male mice scent-mark their territory to keep other male mice away. This is an instinctive behaviour and they will also scent-mark their cages when kept as pets, because that is the area they recognise as their own territory. Female mice do not scent mark in the same way, so male mice kept in captivity do tend to smell more than female mice.
No. Cats are not fond of the scent of citric acid. Orange peel is commonly used to deter cats from certain areas when being trained not to scratch furniture or spray indoors.
Rats and mice would know that a ferret is around by their scent.
yes they do eat mice.