Arctic Blue vs Common Tern

Agriades aquilo compared with Sterna hirundo

Key Differences

• Arctic Blue is Near Threatened while Common Tern is Endangered.

Taxonomic Classification

Rank	Arctic Blue	Common Tern
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum	Arthropoda (절지동물)	Chordata (척삭동물)
Class	Insecta (곤충)	Aves (새)
Order	Lepidoptera (나비목)	Charadriiformes (도요목)
Family	Lycaenidae	Laridae
Genus	Agriades	Sterna
Species	Agriades aquilo	Sterna hirundo

Evolutionary Relationship

Arctic Blue and Common Tern share a common ancestor at the Kingdom level: Animalia. (동물)

Conservation Status

Arctic Blue

NT — Near Threatened

Common Tern

EN — Endangered

Physical Characteristics

Attribute	Arctic Blue	Common Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Blue

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Finland, Norway, Russia, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Tern

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Arctic Blue

The Arctic Blue (Agriades aquilo) is a species in the genus Agriades. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Common Tern

제비갈매기(Sterna hirundo)는 IUCN 적색목록에서 위기(EN)로 분류된다. 야생에서 멸종 위험이 높으며 상당한 개체수 감소와 생존을 위협하는 요인들이 지속되고 있다.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden