Altai Birch Mouse vs Lesser Noctule

Sicista napaea compared with Nyctalus leisleri

Key Differences

• Altai Birch Mouse is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Altai Birch Mouse	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Rodentia (Rodents)	Chiroptera (Bats)
Family	Dipodidae	Vespertilionidae
Genus	Sicista	Nyctalus
Species	Sicista napaea	Nyctalus leisleri

Evolutionary Relationship

Altai Birch Mouse and Lesser Noctule share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Altai Birch Mouse

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Altai Birch Mouse	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Altai Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Altai Birch Mouse

The Altai Birch Mouse (Sicista napaea) is a species in the genus Sicista. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.