Big Brown Bat vs Olive-Backed Thrush

Eptesicus fuscus compared with Catharus ustulatus

Taxonomic Classification

Rank	Big Brown Bat	Olive-Backed Thrush
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Turdidae
Genus	Eptesicus	Catharus
Species	Eptesicus fuscus	Catharus ustulatus

Evolutionary Relationship

Big Brown Bat and Olive-Backed Thrush share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Brown Bat

LC — Least Concern

Olive-Backed Thrush

LC — Least Concern

Physical Characteristics

Attribute	Big Brown Bat	Olive-Backed Thrush
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.

Olive-Backed Thrush

Habitat

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

Range

Widely distributed across Europe (Denmark, Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, Venezuela).

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.

Olive-Backed Thrush

Olive-Backed Thrush (Catharus ustulatus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 4 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇺🇸 United States 🇻🇪 Venezuela