Kerguelen Tern vs Polynesian rat

Sterna virgata compared with Rattus exulans

Key Differences

• Kerguelen Tern is Near Threatened while Polynesian rat is Least Concern.

Taxonomic Classification

Rank	Kerguelen Tern	Polynesian rat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Rodentia (Rodents)
Family	Laridae	Muridae (Mice & Rats)
Genus	Sterna	Rattus
Species	Sterna virgata	Rattus exulans

Evolutionary Relationship

Kerguelen Tern and Polynesian rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Kerguelen Tern

NT — Near Threatened

Polynesian rat

LC — Least Concern

Physical Characteristics

Attribute	Kerguelen Tern	Polynesian rat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Kerguelen Tern

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).