Arctic Blue vs Речная крачка

Agriades aquilo compared with Sterna hirundo

Key Differences

• Arctic Blue is Near Threatened while Речная крачка is Endangered.

Taxonomic Classification

Rank	Arctic Blue	Речная крачка
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum	Arthropoda (членистоногие)	Chordata (хордовые)
Class	Insecta (насекомые)	Aves (птицы)
Order	Lepidoptera (чешуекрылые)	Charadriiformes (ржанкообразные)
Family	Lycaenidae	Laridae
Genus	Agriades	Sterna
Species	Agriades aquilo	Sterna hirundo

Evolutionary Relationship

Arctic Blue and Речная крачка share a common ancestor at the Kingdom level: Animalia. (животные)

Conservation Status

Arctic Blue

NT — Near Threatened

Речная крачка

EN — Endangered

Physical Characteristics

Attribute	Arctic Blue	Речная крачка
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.

Речная крачка

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.

Речная крачка

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden