Fauna
Mammal

Siberian Weasel

Mustela sibirica

Also known as Kolonok

The Siberian Weasel is a slender, short-legged carnivore with warm yellow-brown fur and a darker facial mask. It searches burrows, rock piles, stream edges, and buildings for rodents and other small prey.

Slender CarnivoreRodent HunterScent Marking
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & preyMice, Voles, Small birds
Predators
  • Eagles
  • Owls
  • Larger carnivores
ThreatsTrapping, road mortality, poisoning, habitat loss, and persecution
HabitatsForest, scrub, river valleys, farmland edges, rocky ground, and settlements
Life spanOften 5 to 8 years
  1. FamilyMustelidae
  2. SpeciesMustela sibirica
Native Introduced

Native range in olive; established introduced range in rust.

Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
A trapped or cornered weasel can bite deeply; never touch, feed, or block its escape.
Why it is dangerous
Sharp teeth and claws can cause a serious wound when the animal is cornered or restrained.
How to recognize a risky encounter
Recognize a long low-bodied mustelid with warm yellow-brown fur and a darker facial area.
What to do
Never capture or handle it; secure pets, provide an escape route, and contact wildlife professionals if needed.
Responsible observation
  • Movement: Watch for quick low bounds along cover edges.
  • Space: Remain still and leave a broad unobstructed retreat.
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