Big Brown Bat vs Waved Albatross

Eptesicus fuscus compared with Phoebastria irrorata

Key Differences

• Big Brown Bat is Least Concern while Waved Albatross is Critically Endangered.

Taxonomic Classification

Rank	Big Brown Bat	Waved Albatross
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Procellariiformes (Procellariiformes)
Family	Vespertilionidae	Diomedeidae
Genus	Eptesicus	Phoebastria
Species	Eptesicus fuscus	Phoebastria irrorata

Evolutionary Relationship

Big Brown Bat and Waved Albatross share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Brown Bat

LC — Least Concern

Waved Albatross

CR — Critically Endangered

Physical Characteristics

Attribute	Big Brown Bat	Waved Albatross
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.

Waved Albatross

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Colombia, Ecuador, and Norway. Currently classified as Critically Endangered 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.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador