Forest Lamb vs Northern Birch Mouse

Albatrellus ovinus compared with Sicista betulina

Key Differences

• Forest Lamb is Extinct while Northern Birch Mouse is Least Concern.

Taxonomic Classification

Rank	Forest Lamb	Northern Birch Mouse
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Mammalia (Mammals)
Order	Russulales (Russulales)	Rodentia (Rodents)
Family	Albatrellaceae	Dipodidae
Genus	Albatrellus	Sicista
Species	Albatrellus ovinus	Sicista betulina

Conservation Status

Forest Lamb

EX — Extinct

Northern Birch Mouse

LC — Least Concern

Physical Characteristics

Attribute	Forest Lamb	Northern Birch Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Forest Lamb

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, Sweden, and United States.

Northern Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Denmark, Norway, Russia, Sweden, and Ukraine.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden