Common Blue vs Northern Birch Mouse

Polyommatus icarus compared with Sicista betulina

Taxonomic Classification

Rank	Common Blue	Northern Birch Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Lepidoptera (Butterflies & Moths)	Rodentia (Rodents)
Family	Lycaenidae	Dipodidae
Genus	Polyommatus	Sicista
Species	Polyommatus icarus	Sicista betulina

Evolutionary Relationship

Common Blue and Northern Birch Mouse share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Common Blue

LC — Least Concern

Northern Birch Mouse

LC — Least Concern

Physical Characteristics

Attribute	Common Blue	Northern Birch Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Blue

Habitat

Inhabits Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Widely distributed across Asia (Cyprus), Europe (40 countries), and North America (United States).

Northern Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Denmark, Norway, Russia, Sweden, and Ukraine.

Common Blue

Common Blue (Polyommatus icarus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 5 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden 🇺🇦 Ukraine