River Tern vs Snowy-crowned Tern

Sterna aurantia compared with Sterna trudeaui

Key Differences

• River Tern is Vulnerable while Snowy-crowned Tern is Least Concern.

Taxonomic Classification

Rank	River Tern	Snowy-crowned Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Charadriiformes (Charadriiformes)	Charadriiformes (Charadriiformes)
Family same	Laridae	Laridae
Genus same	Sterna	Sterna
Species	Sterna aurantia	Sterna trudeaui

Evolutionary Relationship

River Tern and Snowy-crowned Tern share a common ancestor at the Genus level: Sterna.

Conservation Status

River Tern

VU — Vulnerable

Snowy-crowned Tern

LC — Least Concern

Physical Characteristics

Attribute	River Tern	Snowy-crowned Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Snowy-crowned Tern

Habitat

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

Range

Found in Norway.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway