Big Brown Bat vs Chinese Crested Tern

Eptesicus fuscus compared with Thalasseus bernsteini

Key Differences

• Big Brown Bat is Least Concern while Chinese Crested Tern is Critically Endangered.

Taxonomic Classification

Rank	Big Brown Bat	Chinese Crested Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Vespertilionidae	Laridae
Genus	Eptesicus	Thalasseus
Species	Eptesicus fuscus	Thalasseus bernsteini

Evolutionary Relationship

Big Brown Bat and Chinese Crested Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big Brown Bat

LC — Least Concern

Chinese Crested Tern

CR — Critically Endangered

Physical Characteristics

Attribute	Big Brown Bat	Chinese Crested Tern
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.

Chinese Crested Tern

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Distributed across Norway and Taiwan. 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.

Chinese Crested Tern

The Chinese Crested Tern (Thalasseus bernsteini) is a species in the genus Thalasseus. It is currently classified as Critically Endangered on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.