Big Brown Bat vs Noctule

Eptesicus fuscus compared with Nyctalus noctula

Key Differences

• Big Brown Bat is Least Concern while Noctule is Vulnerable.

Taxonomic Classification

Rank	Big Brown Bat	Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Mammalia (Mammals)	Mammalia (Mammals)
Order same	Chiroptera (Bats)	Chiroptera (Bats)
Family same	Vespertilionidae	Vespertilionidae
Genus	Eptesicus	Nyctalus
Species	Eptesicus fuscus	Nyctalus noctula

Evolutionary Relationship

Big Brown Bat and Noctule share a common ancestor at the Family level: Vespertilionidae.

Conservation Status

Big Brown Bat

LC — Least Concern

Noctule

VU — Vulnerable

Physical Characteristics

Attribute	Big Brown Bat	Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big Brown Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Colombia, Ecuador, United States, and Venezuela.

Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Big Brown Bat

The Big Brown Bat (Eptesicus fuscus) is a species in the genus Eptesicus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Noctule

Noctule (Nyctalus noctula) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 1 countries:

🇧🇪 Belgium