Chipmunks are easily recognized by their small size and the distinctive five dark stripes on their backs. Fully grown chipmunks range from 11 to 15 cm in length and weigh about 40 grams.

Habits & Behaviours

Chipmunks can be found throughout Ontario and are active during the daytime hours during the spring, summer and fall. They are not true hibernators, but do spend most of the winter underground, sleeping for extended periods of time waking only to eat. Chipmunks have special pouches in their cheeks for storing food and will climb trees and structures and scour gardens and land in constant search of it. They are considered a pest species and nuisance animal mainly because of their destructive burrowing nature. Although they prefer to live outside and underground, chipmunks, looking for warmth, will sometimes enteryour residential, recreational/cottage or commercial property and they can be extremely troublesome.

Complaints & Destruction

Chipmunks can be difficult to exclude and they are capable of doing considerable damage to your property. Chipmunks can burrow tunnels 10 metres or more that contain several chambers, entrances, and exits. In larger numbers, their constant burrowing near structures can loosen framing, retaining walls, and foundations. Chipmunks can tear down soffit and chew through wood. They will dig up yards and gardens to access food. If they get inside your residential, recreational/cottage, or commercial property, they can tear up insulation, chew through wires and anything else they can get their teeth on.

Major Risks & Dangers

Fires & power outages

Chipmunks will chew electrical wiring, which may result in costly repairs, power outages, and a serious risk of fire.

Structural damages

Chipmunks must chew constantly to prevent their incisors from growing too long. This, combined with their constant burrowing can result in costly structural damage.

Health risks

Chipmunks attract parasites such as fleas, mites and ticks. Dead and decomposing chipmunks in attics can attract insects, and cause staining and putrid odours that can last for months. Displaced parasites will often look for new hosts and can infest humans or domestic animals. Chipmunks may also carry diseases such as rabies.


Chipmunks mate twice a year, once in the spring and then again in the summer. The average gestation period is 31 days and the average litter consists of 2-6 young. The young grow quickly. They are weaned at about four weeks old and are independent at about eight weeks old.

Eating Habits

Chipmunks are omnivores, but like the squirrel, they are primarily vegetarians, living on seeds, nuts, and acorns, as well as, fruits or berries. However, if faced with hunger they have been known to eat slugs, insects, spiders, nestling birds, eggs, and occasionally mice or small snakes.


To reduce the risk of chipmunks destroying your residential, recreational/cottage, or commercial property, exclusion is the best prevention.

Greenshield Pest Control Inc. can provide you with many exclusion solutions.

If you suspect that a chipmunk or a family of chipmunks may be dwelling in or on your residential, recreational/cottage, or commercial properties, it is best to let the professionals do the job of safely and humanely removing the animal(s). Please contact us today or see our Wildlife Control Services section for further information on the types of services and solutions we can provide.

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