Lesser Noctule vs Russet Ground Squirrel

Nyctalus leisleri compared with Spermophilus major

Key Differences

• Lesser Noctule is Endangered while Russet Ground Squirrel is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Russet Ground Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order	Chiroptera (Bats)	Rodentia (Rodents)
Family	Vespertilionidae	Sciuridae (Squirrels)
Genus	Nyctalus	Spermophilus
Species	Nyctalus leisleri	Spermophilus major

Evolutionary Relationship

Lesser Noctule and Russet Ground Squirrel share a common ancestor at the Class level: Mammalia. (Mammals)

Conservation Status

Lesser Noctule

EN — Endangered

Russet Ground Squirrel

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Russet Ground Squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Russet Ground Squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Russia.