Irrawaddy Squirrel vs Lesser Noctule

Callosciurus pygerythrus compared with Nyctalus leisleri

Key Differences

• Irrawaddy Squirrel is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Irrawaddy Squirrel	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	Sciuridae (Squirrels)	Vespertilionidae
Genus	Callosciurus	Nyctalus
Species	Callosciurus pygerythrus	Nyctalus leisleri

Evolutionary Relationship

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

Conservation Status

Irrawaddy Squirrel

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Irrawaddy Squirrel	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Irrawaddy Squirrel

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.