Big Brown Bat vs Common Goldeneye

Eptesicus fuscus compared with Bucephala clangula

Key Differences

• Big Brown Bat is Least Concern while Common Goldeneye is Not Evaluated.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Big Brown Bat

LC — Least Concern

Common Goldeneye

NE — Not Evaluated

Physical Characteristics

Attribute	Big Brown Bat	Common Goldeneye
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.

Common Goldeneye

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.

Common Goldeneye

Common Goldeneye (Bucephala clangula) 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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇺🇸 United States