Most people assume pests disappear when the temperature drops, but that isn’t the case for every critter. In fact, for homeowners in Arizona, winter often signals an uptick in rodent activity. Understanding seasonal behavior is the first step in knowing how to get rid of pack rats effectively andpreventing serious infestations before they start.

While you might be bundling up indoors, pack rats are looking for ways to do the same. As the environment outside becomes less hospitable, your home becomes a prime target, leading to increased sightings and potential damage during the colder months.

Pack Rat Behavior Changes in Winter

A common misconception is that rodents hibernate during the winter. Pack rats remain active year-round, meaning their need for food, water, and shelter never stops. What does change is their motivation.

When temperatures are mild, pack rats are content living in outdoor middens made of sticks, cactus, and debris. However, as the nights get colder, their survival instinct pushes them to seek more substantial shelter and consistent food sources, often bringing them closer to, or inside, human structures.

Winter Drives Pack Rats Indoors for Warmth

Winter weather, even in milder climates, can be harsh and unpredictable for small mammals, and the need for thermal regulation often pushes them indoors. This migration is why many homeowners find themselves researching how to get rid of pack rats, specifically during the winter season.

Your home offers everything they need to survive. Heated spaces such as attics, garages, crawl spaces, and wall voids are incredibly attractive to a rodent looking to escape the chill. Once they find a warm entry point, it can be tricky to get rid of pack rats on your own.

Scarcity of Food Outside

During spring and summer, nature provides an abundance of seeds, fruits, and vegetation. In winter, these natural food sources decline significantly. This scarcity forces pack rats to expand their foraging territory.

Homes and outbuildings provide easy access to alternative food sources, such as pet food left on porches, bird seed stored in sheds, and even pantry items. If a pack rat finds a reliable food source near your home, they will likely set up camp nearby to minimize their travel time in the cold.

Increased Movement and Infestation Risk

Because resources are harder to find, pack rats often travel farther during winter to survive. This increased movement raises the likelihood of them stumbling upon your property.

While they might stay within a small radius during summer, winter desperation drives them to explore new areas. This exploration often leads them to discover small gaps in siding, vents, or foundations. Once they realize your home offers warmth and food, they will move in quickly, making the question of how to get rid of pack rats a pressing concern.

Warm Shelter Leads to Nesting and Damage

The biggest threat pack rats pose in winter is the destruction they cause while building their indoor nests.

  • Structural Damage: Pack rats will gnaw on almost anything, including wood, drywall, and insulation, to create nesting material for their middens.
  • Electrical Hazards: They are notorious for chewing on electrical wiring, which can cause short circuits and pose a significant fire risk.
  • Contamination: Their presence introduces droppings, urine, and parasites into your living space, contaminating insulation and air quality.

Why Pack Rats Are a Bigger Winter Threat

Size matters when it comes to property damage. Pack rats are significantly larger than the common house mouse, meaning they can cause more destruction in less time.

Plus, their instinctual hoarding behavior (collecting shiny objects, debris, and vegetation) creates large, messy nests that are difficult to clean up. Pack rat middens can also create a microclimate that harbors other pests, such as kissing bugs, which can bite humans and transmit diseases. This makes swift removal essential.

Signs of a Winter Pack Rat Infestation

Wondering how to get rid of pack rats? Early detection is the first step. Look out for these signs:

  • Scratching or scurrying noises in ceilings or walls, especially at night.
  • Gnaw marks on wood, wires, or stored items in garages.
  • accumulations of droppings or shredded nesting materials in hidden corners.
  • Small items moving or going missing from storage areas.

How to Get Rid of Pack Rats

If you think pack rats may have moved in for the winter, the most important step is to call a professional right away. These rodents can cause extensive hidden damage, and attempting to handle the problem yourself can make it worse or allow it to spread unnoticed.

That said, here are a few signs and risk factors to be aware of as indicators that it’s time to call for help:

  • Possible Entry Points: Small gaps around pipes, vents, or rooflines can allow pack rats inside, even if the opening seems minor.
  • Attractants Around the Home: Pet food, bird seed, or accessible trash can draw pack rats toward your property.
  • Outdoor Harborage: Woodpiles, debris, or clutter near the foundation create ideal nesting areas that can lead to indoor infestations.

Because pack rats often nest in walls, attics, and crawl spaces, the damage is rarely visible until it becomes costly. If you suspect any activity at all, the safest and most effective solution is to call for a professional inspection so the issue can be properly identified and resolved before winter activity peaks.

Protect Your Home This Winter

Don’t let pack rats turn your home into their winter retreat. If you are hearing noises in the attic or spotting signs of rodent activity, Patriot Pest Control is here to help. We can inspect your property, safely remove the infestation, and help you prevent them from coming back.

Get started with a free inspection today.