Chipmunk

Chipmunk facts at a glance

How big is a chipmunk?

An adult chipmunk measures 28 cm long — about 16% of the height of an average adult person (1.73 m) — and weighs around 100 g, a small fraction of an average adult’s body weight (70 kg).

What is a group of chipmunks called?

Explore more animal collective nouns and baby animal names .

Cheek pouches and hoarding

A chipmunk's most useful tool is its pair of stretchy cheek pouches, which can expand to carry surprising quantities of seeds and nuts back to the burrow — a single chipmunk can stash thousands of food items over a season. Rather than building up body fat like a true hibernator, it relies on these underground larders to survive winter, waking periodically to eat from its stored supplies.

Burrows and winter torpor

Eastern chipmunks dig extensive burrow systems with tunnels, sleeping chambers, and storage rooms, often with well-hidden entrances. Through the coldest months they enter torpor, dropping their body temperature and heart rate to save energy, but they are not deeply asleep all winter — they rouse to feed on their hoard and may emerge on mild days.

Diet and behaviour

Chipmunks are omnivores that eat seeds, nuts, berries, fungi, buds, and insects, and occasionally bird eggs or small invertebrates. They are mostly solitary and territorial, active by day, and use a range of sharp 'chip' and 'chuck' calls to warn of predators such as hawks, foxes, snakes, and domestic cats.

Range and role

The eastern chipmunk lives across eastern North America in deciduous forests, woodland edges, parks, and suburban gardens, while many other chipmunk species live in western North America and one in Asia. By burying and forgetting some of their seed caches, chipmunks help plant new trees, making them important seed dispersers in forest ecosystems.

Did you know? Chipmunk facts

• Chipmunks are small, striped members of the squirrel family native mainly to North America.
• A group of chipmunks is called a scurry. Chipmunks are mostly solitary and territorial, so they are usually seen alone rather than in groups, and a baby chipmunk is called a pup or kit.
• Chipmunks enter a state called torpor through winter rather than true deep hibernation. They lower their body temperature and heart rate but wake periodically to feed on the seeds and nuts stored in their burrow.
• Chipmunks are omnivores that eat seeds, nuts, berries, fungi, and buds, along with insects and occasionally bird eggs. They carry food in their cheek pouches to store underground for winter.
• Chipmunks have stretchy cheek pouches used to carry large amounts of food back to their burrows. This lets them gather and store seeds and nuts quickly while staying alert to predators.
• Conservation: Least Concern (IUCN).

Diet & feeding

Chipmunk feeds primarily as a omnivore (seeds, nuts, fruit, insects). A chipmunk's most useful tool is its pair of stretchy cheek pouches, which can expand to carry surprising quantities of seeds and nuts back to the burrow — a single chipmunk can stash thousands of food items over a season. Rather than building up bod

Adaptations

• A chipmunk's most useful tool is its pair of stretchy cheek pouches, which can expand to carry surprising quantities of seeds and nuts back to the burrow — a single chipmunk can stash thousands of food items over a season. Rather than building up body fat like a true hibernator, it relies on these underground larders to survive winter, waking periodically to eat from its stored supplies.
• Eastern chipmunks dig extensive burrow systems with tunnels, sleeping chambers, and storage rooms, often with well-hidden entrances. Through the coldest months they enter torpor, dropping their body temperature and heart rate to save energy, but they are not deeply asleep all winter — they rouse to feed on their hoard and may emerge on mild days.

Behaviour & ecology

• A chipmunk's most useful tool is its pair of stretchy cheek pouches, which can expand to carry surprising quantities of seeds and nuts back to the burrow — a single chipmunk can stash thousands of food items over a season. Rather than building up body fat like a true hibernator, it relies on these underground larders to survive winter, waking periodically to eat from its stored supplies.
• Eastern chipmunks dig extensive burrow systems with tunnels, sleeping chambers, and storage rooms, often with well-hidden entrances. Through the coldest months they enter torpor, dropping their body temperature and heart rate to save energy, but they are not deeply asleep all winter — they rouse to feed on their hoard and may emerge on mild days.
• Chipmunks are omnivores that eat seeds, nuts, berries, fungi, buds, and insects, and occasionally bird eggs or small invertebrates. They are mostly solitary and territorial, active by day, and use a range of sharp 'chip' and 'chuck' calls to warn of predators such as hawks, foxes, snakes, and domestic cats.

Communication

• Chipmunk uses scent, posture, and vocal signals to mark territory and coordinate social behaviour.
• Communication intensity often peaks during breeding seasons and territorial disputes.

Habitat & range

Deciduous forest, woodland edges, suburbs

Ecological role

Chipmunk plays a recognised ecological role in deciduous forest, woodland edges, suburbs.

Conservation status of the Chipmunk

Sources & references

This guide is compiled and reviewed against established zoological and conservation references. Key sources for the Chipmunk:

• IUCN Red List of Threatened Species

  Conservation status (Least Concern) reflects the IUCN Red List category for Tamias striatus.

• iNaturalist — observations & photos

  Search citizen-science observations and community IDs for Tamias striatus. Useful for range checks and recent sightings — not a substitute for formal Red List status.

• GBIF — occurrence data

  Global Biodiversity Information Facility species search for Tamias striatus. Explore published occurrence records used in range research.

• IUCN Red List — Tamias striatus.

  Conservation status (Least Concern) and population trends.

• Animal Diversity Web — Tamias striatus. University of Michigan Museum of Zoology.

  Life history, morphology, and range.

• Wikipedia — Chipmunk.

  General taxonomy and overview (cross-check primary sources).

• Global Animal Guide editorial standards

  How we research, source, review, and update every guide for accuracy.