Little Black Serotine vs River Tern

Eptesicus andinus compared with Sterna aurantia

Key Differences

• Little Black Serotine is Least Concern while River Tern is Vulnerable.

Taxonomic Classification

Rank	Little Black Serotine	River 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	Sterna
Species	Eptesicus andinus	Sterna aurantia

Evolutionary Relationship

Little Black Serotine and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Little Black Serotine

LC — Least Concern

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Little Black Serotine	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Little Black Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

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.