TREE SQUIRRELS · SPECIES PROFILE

Mutable Sun Squirrel

Heliosciurus mutabilis

Least Concern
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Body length20–25 cm (8–10 in)
Tail length18–24 cm (7–9 in)
Weight~300–400 g
Fur colorGray-brown to olive-brown
Breeding seasonUnknown
Gestation~40–45 days
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Classification

KingdomAnimalia
PhylumChordata
ClassMammalia
OrderRodentia
FamilySciuridae
GenusHeliosciurus
SpeciesHeliosciurus mutabilis
NATIVE RANGE

Where it is found

The Mutable Sun Squirrel is native to Central Africa.

Its range includes:

The species occurs across much of the Congo Basin and surrounding forest regions.

Democratic Republic of the Congo
Republic of the Congo
Central African Republic
Cameroon
Gabon
Angola
HABITAT

Where it lives

Mutable Sun Squirrels inhabit tropical forest environments.

Typical habitats include:

They are adaptable and may also occur in human-modified landscapes with tree cover.

Lowland tropical rainforests
Secondary forests
Woodland savannas
Forest edges
Riverine forests
RANGE & HABITAT CONTEXT

Compare form, setting and structure

Related tree squirrels help break up the reference while showing how habitat, body form and movement can vary across the broader group.

Lowland Slender Squirrel — related tree squirrel visual context
RELATED TREE SQUIRRELLowland Slender SquirrelSundasciurus tenuis — related group reference for visual comparison; not Mutable Sun Squirrel.(c) Soh Kam Yung, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
Bangs's Mountain Squirrel — related tree squirrel visual context
RELATED TREE SQUIRRELBangs's Mountain SquirrelSyntheosciurus brochus — related group reference for visual comparison; not Mutable Sun Squirrel.(c) Dan Riley, some rights reserved (CC BY) · CC-BY · VIEW SOURCE ↗
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Nest & Shelter

Mutable Sun Squirrels build nests known as dreys in trees.

Typical nest characteristics include:

They may also occasionally use tree cavities as shelter.

Constructed from twigs, leaves, bark strips, and grass
Located in tree forks or dense branches
Positioned within the forest canopy
Used for resting and raising young
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Physical Profile

Body length20–25 cm (8–10 in)
Tail length18–24 cm (7–9 in)
Weight~300–400 g
Fur colorGray-brown to olive-brown
BellyPale gray or cream
Distinct featureVariable coat coloration
TailLong and bushy

The species name “mutable” refers to the variable coloration seen among individuals.

BEHAVIOR & FORAGING CONTEXT

Keep behavior connected to the animal

These are related tree squirrels, not photographs of Mutable Sun Squirrel. Use them as visual context for locomotion, posture, feeding and environmental use.

Douglas Squirrel — related tree squirrel visual context
RELATED TREE SQUIRRELDouglas SquirrelTamiasciurus douglasii — related group reference for visual comparison; not Mutable Sun Squirrel.(c) song_dog, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
Fremont’s Squirrel — related tree squirrel visual context
RELATED TREE SQUIRRELFremont’s SquirrelTamiasciurus fremonti — related group reference for visual comparison; not Mutable Sun Squirrel.(c) Terry Lee Crane, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
BEHAVIOR

How it behaves

Mutable Sun Squirrels are diurnal and arboreal.

Typical behaviors include:

They are agile climbers well adapted to dense tropical forests.

Moving through tree branches and forest canopy
Foraging among branches, vines, and foliage
Living solitary or in pairs
Producing alarm calls when threatened
DIET

What it eats

Mutable Sun Squirrels are omnivorous.

Common foods include:

Their feeding behavior helps with seed dispersal in forest ecosystems.

Fruits
Seeds
Nuts
Tree buds
Bark
Fungi
Insects
GROUP DIVERSITY

See the wider group around this species

Squirrels in the same broad group can look and live very differently. These credited references provide comparison without changing the facts for Mutable Sun Squirrel.

American Red Squirrel — related tree squirrel visual context
RELATED TREE SQUIRRELAmerican Red SquirrelTamiasciurus hudsonicus — related group reference for visual comparison; not Mutable Sun Squirrel.(c) jmarcinik, some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
Mearns’s Squirrel — related tree squirrel visual context
RELATED TREE SQUIRRELMearns’s SquirrelTamiasciurus mearnsi — related group reference for visual comparison; not Mutable Sun Squirrel.(c) Mariana Novelo B., some rights reserved (CC BY-NC) · CC-BY-NC · VIEW SOURCE ↗
REPRODUCTION

Breeding & Young

Breeding seasonUnknown
Gestation~40–45 days
Litter size2–3 young

Young squirrels are raised in tree nests constructed from leaves and twigs.

LIFESPAN

Longevity

Unknown

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Conservation

STATUS Least Concern

IUCN Status: Least Concern

The Mutable Sun Squirrel remains widespread throughout Central African forests, and populations are considered stable.