Mice love to nest inside people’s homes, where it’s warm, and they have plenty of access to food. Once they have constructed their nests, mice will begin breeding, and their numbers will rapidly multiply. Once a pair of mice start breeding, they won’t stop until they are forced to by an exterminator or through a lack of resources. As long as they have access to food and shelter, mice will continue to breed throughout the year. The gestation period for a mouse is only around three weeks on average, and female mice can mate again immediately after giving birth. It takes about six weeks for each baby mouse to reach maturity, at which point they can start nesting and reproducing themselves. Because of these numbers, a mouse nest can contain anywhere between a dozen and two dozen mice.
Human homes provide the ideal nesting environment for mice, so they are such a common problem for property owners. They especially like to nest near warm appliances like boilers, stoves, and behind fridges.
Mice will build their nests from whatever readily-available materials they can use. Anything soft and easy to shred can be used as a lining for their nests. Paper, fabric, string, and fibreglass insulation are all commonly used by mice to construct their nests. Different mouse species will build their nests in different ways, some form rough ball-like structures, whereas others will keep their nests as loose piles of material.
If you have mice nesting in your home, you’ll start finding their droppings all over the place. They also generate a strong ammonia-like smell that isn’t likely to go unnoticed. Check any dark and warm secluded corners of your home for mouse nests. If you find one, call in a professional pest controller immediately.