Do Norway Rats Hibernate in the Winter?

Like many animals, the Norway rat prefers temperate weather over cold, harsh winters. However, Norway rats do not hibernate. Instead, they simply seek warmer accommodations, often ending up in homes. These nocturnal pests remain active year-round, causing significant damage to buildings, fouling stored food, and negatively impacting human health.

Damage to Homes

Norway rat breeding does slow down during colder months, but that doesn't mean it stops altogether. A growing colony of these pests can cause serious structural damage to an infested home.

Nest Building

Ripped insulation, upholstery, and paper make perfect nesting materials for baby Norway rats.


This species is notorious for digging tunnels around home foundations that can compromise safety and stability.


Norway rats grind down their ever-growing teeth by chewing on floor and ceiling joists, wiring, door corners, siding, and other hard surfaces.

Stored Food Losses

Because Norway rats do not hibernate during winter, they need to keep foraging for food. The omnivorous pests will eat almost anything, including scraps left in garbage cans and packaged goods in pantries. They may even save leftovers for later in hollow walls, attracting insects.

Impact on Health

People can become ill following bites, scratches, or contact with these pests' waste. Rodents are associated with the spread of bubonic plague, salmonellosis, lepto spirosis, and tularemia. Since Norway rats do not hibernate, the disease, damage, and destruction they cause doesn't take a break either. People with rodent infestations should seek professional pest removal services from the experts at Critter Control.

indicates required field.

Get them out.
Keep them out.®

Experience wildlife or pest issue? We can help! Complete this form and your local Critter Control® office will contact you to assist.


Best Bat Removal

Anett B.
Brandon was out to please and make out lives easier with out bat situation. Above and beyond of the call of duty and got the job done. Thank you!
Celia G
Bat removal. Very knowledgeable and dedicated.
Emily G.
BAT POOP CLEAN-UP AND PREVENTION! Bat guano removed from gables. No bats found in attic, so put new screens on all gable vents, as one screen was close to breaking and then bats may have gotten in! Great work in Tulsa!
Jerry M.
Squirrels and chipmunks were in our attic. So we called Critter Control to do an inspection. Their representative climbed all over our very steep roof and found several places where squirrels had entered our attic.

Upon inspection of the attic, evidence of bats was also found. The Critter Control team came on time to completely caulk the entire perimeter of the house and create an exit strategy for the squirrels and bats.

Because bat droppings can cause histoplasmosis, this also required total removal and replacement of our attic insulation and sanitizing the space. Not a small job in a 1,300 sq. ft. attic! While Critter Control’s cost was high, our homeowners insurance covered most of it. Everyone representing Critter Control was professional, courteous and timely. I would highly recommend them to anyone who thinks they might have unwelcome guests living in their attic
Vincent S.
On recommendations from a nearby pest control company, I called Critter Control for suspicious bat droppings.

Madison came out the same day to do an inspection. She was knowledgeable, thorough, and highly professional. She examined the ‘matter’ that had been scattered on my threshold and thought it was foliage. But she then asked to go up to my attic space where the bats could be roosting. She had to walk up 3 flights of stairs with a heavy ladder. She again spent some time searching all the nooks and crannies and found nothing.

She seemed so interested in her craft, it was truly inspiring to see! She reassured me and is writing up a prevention strategy for my appraisal. She charged me NOTHING!! I am so impressed. We need more Madisons in this world!

Service: Bat Removal
Sonia-Maria R.
We noticed droppings on our brand new deck - we were given their number from our contractor. They came the next day. Brian looked at it and said - yeah, bats!! He then checked every area in our attic and he explained exactly what needed to be done.

He found evidence of a mice infestation, provided a referral and they are helping us as well. Great service, very informative, very professional! We are very satisfied and would recommend them to anyone who has any issues with any critters!


Contact Form