Animals

A drawing of a little brown bat

Little brown bat Facts for Kids

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A bat is the only mammal that really flies, and it eats mosquitoes.

Little brown bats fly at night. They hang upside down to sleep. They eat lots of bugs, like mosquitoes.

A little brown bat makes clicks and squeaks too high for people to hear and listens for the echoes that bounce back from insects, which is how it finds them in the dark. In the daytime it sleeps hanging upside down in a hidden, dark place such as a barn, a cave or a hollow tree.

Bats are not blind: they see well, but they also use echoes to find tiny insects in the dark. A little brown bat eats a great many insects each night, which helps protect gardens and crops. In winter, when insects are gone, bats hibernate in caves. A disease called white-nose syndrome, caused by a fungus that grows on hibernating bats, has made their numbers fall in many places, so scientists are working on ways to treat it and people protect the caves where bats sleep.

How big is a little brown bat?

โœ‹ a child's hand, 5.9 in15 cm๐Ÿฆ‡ Little brown bat, 10 in26 cm long

Little brown bat in numbers

Length9.1 to 11 in23 to 28 cm1wingspan
Height at the shoulderno checked number yet
Weight0.5 oz14 g1about
Top speedno checked number yet
How long it lives6.5 years6.5 years2average
What it eatsmosquitoes, moths, beetles and other flying insects
Where it livesforests, towns and lakeshores across Canada and the United States
What kindMammals
Is it in danger?In danger (Endangered)3

A number we couldnโ€™t find on a page we trust says so, instead of guessing.

Wow!

Compare the little brown bat

Friends and neighbours

Three questions

What does the little brown bat eat?

The answer: Bugs. It eats mosquitoes, moths, beetles and other flying insects.

Where does the little brown bat live?

The answer: Backyard. It lives in forests, towns and lakeshores across Canada and the United States.

Which is longer, the little brown bat or the cheetah?

The answer: The cheetah. Look at them side by side on the compare stage.

Books about the little brown bat, free at the library

Ask a grown-up to tap the button: it shows where to borrow a book about the little brown bat for free.

Where these numbers come from

  1. National Park Service, Lassen Volcanic, checked 30 October 2026.
  2. National Park Service, Jewel Cave, checked 30 October 2026.
  3. Wikidata, from the IUCN Red List, checked 30 October 2026.
  4. Wikidata, Little brown bat (Q746127), checked 30 October 2026.

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