Mammal

Siberian Flying Squirrel

Pteromys volans

Also known as Russian Flying Squirrel, Eurasian Flying Squirrel

Siberian flying squirrels spend their lives high in the canopy of old-growth boreal forests, gliding effortlessly between trees using a fur-covered membrane extending between their wrists and ankles. These strictly nocturnal rodents nest in hollow tree cavities carved out by woodpeckers or construct small spherical nests of lichen and moss. Large, dark eyes provide exceptional night vision for navigating dense mixed taiga forests in search of tree catkins, buds, and nuts.

NocturnalArborealGlider

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Least ConcernConservation status

Key facts

Diet & preyBirch Catkins, Alder Catkins, Pine Cone Seeds

Predators

Ural Owl
Eurasian Eagle-Owl
Pine Marten

ThreatsDeforestation, habitat fragmentation, loss of old cavity trees

HabitatsBoreal taiga, old-growth mixed coniferous-deciduous forests

Life span3–5 years in the wild

Classification

FamilySciuridae
SpeciesPteromys volans

Range & activity

Range data is not available yet.

Safe observation

Interaction riskLow

Low
Moderate
High
Very high

Why interaction risk is low: Safe to observe at a normal distance.
What to notice: Recognized by soft silver-gray fur, exceptionally large black eyes, and a furry glide membrane.
Support conservation: Maintain a respectful distance from active cavity trees and avoid using bright flash photography.

Responsible observation

Look for Yellow Droppings: Check the bases of large aspen or birch trees for distinctive bright yellow fecal pellets.
Observe at Dusk: Position yourself near known nest cavities right around sunset when individuals emerge.
Avoid Disturbance: Maintain a quiet distance and avoid shining direct bright light onto emerging squirrels.

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