One of the most encountered pests, rodents can be found all over the country. Did you know, they find their way into approximately 21 million U.S. homes each winter? In fact, according to a survey by the National Pest Management Association (NPMA), nearly one-third of Americans have had a rodent problem in their home. Different types of rodents typically invade homes during the fall and winter in search of food and shelter as the climate cools, although they can still pose problems throughout the rest of the year. The majority of homeowners surveyed reported rodent sightings in the kitchen, as well as the basement and living room to lesser extents. The mst common rodents are the house mice and field mice.