Big Brown Bat vs Long-eared Owl

Eptesicus fuscus compared with Asio otus

Key Differences

• Big Brown Bat is Least Concern while Long-eared Owl is Data Deficient.

Taxonomic Classification

Rank	Big Brown Bat	Long-eared Owl
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Strigiformes (Owls)
Family	Vespertilionidae	Strigidae (True Owls)
Genus	Eptesicus	Asio
Species	Eptesicus fuscus	Asio otus

Evolutionary Relationship

Big Brown Bat and Long-eared Owl share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Brown Bat

LC — Least Concern

Long-eared Owl

DD — Data Deficient

Physical Characteristics

Attribute	Big Brown Bat	Long-eared Owl
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.

Long-eared Owl

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (5 countries) and North America (United States).

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.

Long-eared Owl

Long-eared Owl (Asio otus) is classified as Data Deficient (DD) on the IUCN Red List. Insufficient data available to assess extinction risk. Further research and field surveys are needed.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇺🇸 United States