Mice are abundant in rural and urban areas. Sometimes they can gain access into buildings in search of food and warmth. If left untreated numbers can grow significantly.

They can become sexually mature within approximately 35 days with a gestation period of around 21 days. They are capable of having litters every 40/50 days depending on weather and availability of food. Litters can average up to 10 young with a lifespan between 9 - 12 months.

Access can be gained through a hole as small as the tip of a pen. General rule of thumb is if the head fits through, the body will follow.

Signs of activity include chewings, droppings, oily residues and shredded materials used for nesting.