エリグロアジサシ vs アジサシ

Sterna sumatrana compared with Sterna hirundo

Key Differences

• エリグロアジサシ is Least Concern while アジサシ is Endangered.

Taxonomic Classification

Rank	エリグロアジサシ	アジサシ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Aves (鳥類)	Aves (鳥類)
Order same	Charadriiformes (チドリ目)	Charadriiformes (チドリ目)
Family same	Laridae	Laridae
Genus same	Sterna	Sterna
Species	Sterna sumatrana	Sterna hirundo

Evolutionary Relationship

エリグロアジサシ and アジサシ share a common ancestor at the Genus level: Sterna.

Conservation Status

エリグロアジサシ

LC — Least Concern

アジサシ

EN — Endangered

Physical Characteristics

Attribute	エリグロアジサシ	アジサシ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

エリグロアジサシ

Habitat

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

Range

Found in Norway.

アジサシ

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.

エリグロアジサシ

The Black-naped Tern (Sterna sumatrana) is a species in the genus Sterna. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

アジサシ

アジサシ（Sterna hirundo）はIUCNレッドリストで危機（EN）に分類されている。野生での絶滅リスクが高く、著しい個体数の減少と生存への継続的な脅威がある。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway