Common Tern vs Eurasian red squirrel

Sterna hirundo compared with Sciurus vulgaris

Key Differences

• Common Tern is Endangered while Eurasian red squirrel is Least Concern.

Taxonomic Classification

Rank	Common Tern	Eurasian red squirrel
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Aves (새)	Mammalia (포유류)
Order	Charadriiformes (도요목)	Rodentia (설치류)
Family	Laridae	Sciuridae (Squirrels)
Genus	Sterna	Sciurus (Tree Squirrels)
Species	Sterna hirundo	Sciurus vulgaris

Evolutionary Relationship

Common Tern and Eurasian red squirrel share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Common Tern

EN — Endangered

Eurasian red squirrel

LC — Least Concern

Physical Characteristics

Attribute	Common Tern	Eurasian red squirrel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Eurasian red squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Asia (Georgia) and Europe (5 countries).

Common Tern

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

Eurasian red squirrel

청설모(Sciurus vulgaris)는 IUCN 적색목록에서 관심 필요(LC) 종으로 분류됩니다. 서식 범위 전반에 걸쳐 널리 분포하며 개체수가 안정적으로 유지되고 있어 즉각적인 보전 우려는 없습니다.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden