Black-eared Red-backed Vole vs River Tern

Eothenomys olitor compared with Sterna aurantia

Key Differences

• Black-eared Red-backed Vole is Least Concern while River Tern is Vulnerable.

Taxonomic Classification

Rank	Black-eared Red-backed Vole	River Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Charadriiformes (Charadriiformes)
Family	Cricetidae	Laridae
Genus	Eothenomys	Sterna
Species	Eothenomys olitor	Sterna aurantia

Evolutionary Relationship

Black-eared Red-backed Vole and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-eared Red-backed Vole

LC — Least Concern

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Black-eared Red-backed Vole	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-eared Red-backed Vole

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

River Tern

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-eared Red-backed Vole

The Black-eared Red-backed Vole (Eothenomys olitor) is a species in the genus Eothenomys. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.