Barrow's Goldeneye vs Big Brown Bat

Bucephala islandica compared with Eptesicus fuscus

Key Differences

• Barrow's Goldeneye is Not Evaluated while Big Brown Bat is Least Concern.

Taxonomic Classification

Rank	Barrow's Goldeneye	Big Brown Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Chiroptera (Bats)
Family	Anatidae	Vespertilionidae
Genus	Bucephala	Eptesicus
Species	Bucephala islandica	Eptesicus fuscus

Evolutionary Relationship

Barrow's Goldeneye and Big Brown Bat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Barrow's Goldeneye

NE — Not Evaluated

Big Brown Bat

LC — Least Concern

Physical Characteristics

Attribute	Barrow's Goldeneye	Big Brown Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Barrow's Goldeneye

Habitat

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

Range

Found across Europe (8 countries) and North America (United States).

Big Brown Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Barrow's Goldeneye

Barrow's Goldeneye (Bucephala islandica) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

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:

🇧🇪 Belgium 🇺🇸 United States