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Little Brown Bat


Bats sometimes take up residence in homes and other man made structures where their presence may be unwanted. Bat guano & urine can cause odour issues as well as damage & contaminate the spaces where bats have taken up residence . Bats also have the potential to transmit rabies, histoplasmosis as well as ectoparasites such as bat bugs, which are very similar in appearance to bed bugs.

Did you know?

Colonies of Little Brown Bats can be very large with numbers in the hundreds or thousands!

Little Brown Bats can eat its own weight in insects each night!

Contrary to popular belief, Little Brown Bats have excellent vision!

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As its name implies, this is a small bat that is 3 1/8 to 3 15/16 inches long and weighing between 0.18 and 0.5 oz. Little Brown Bats are dark brown, reddish brown or pale tan with a lighter underbelly. Their face, ears & wings are dark brown or black.

Little Brown Bats can be found all across Canada and were once the most common bat species found.

Little Brown Bats prefer to roost in trees, caves, buildings, rock crevices, under shingles or tree bark. They prefer to roost close to water where they forage for insects at night.

Colonies of Little Brown Bats migrate in the fall to winter roosts in mines or caves where there is high humidity and the temperature is controlled. They hibernate from October-November through to March - April.

Mating occurs in the fall but females do not become pregnant until spring just after hibernation ends. After a 2 month gestational period, females give birth to 1 or 2 young in May-June.

Young are weaned after 14 days.

Females return to the same maternity colony year after year.

Little Brown Bats are long lived and can live more than 10 years. There are even reports of Little Brown Bats living to be in their thirties!

Is the Little Brown Bat endangered?

Unfortunately, yes, in Canada the Little Brown Bat is classified as endangered. This is largely due to white nose syndrome as well as some other environmental factors.

Are Little Brown Bats Protected?

Yes, Little Brown Bats are Federally protected under the Endangered Species Act.

Are Little Brown Bats threatened by White Nose Syndrome?

Yes, and has decimated several bat colonies and is the leading cause of this species being endangered.

Is it true that bat bites often go undetected?

False. If the person is awake & conscious, they will feel a bat bite which is described as feeling like sharp needle pokes.

We found a bat in our home - should we be concerned about rabies?

Bats cannot transmit rabies by simply being in your residence. If a person or a pet is bitten or scratched by a bat please reach out to your local public health office for detailed instructions on how to proceed.

How can I prevent bats from getting into my home ?

To prevent bats from getting into your home it is recommended to seal entry points on the exterior of your home; this can include caulking smaller openings, having chimney caps with 1/4 inch wire mesh installed, sealing around electrical and plumbing conduits and screening over roof gables & attic vents etc.

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