Black Tern vs Bosnian Blue

Chlidonias niger compared with Agriades dardanus

Key Differences

• Black Tern is Least Concern while Bosnian Blue is Near Threatened.

Taxonomic Classification

Rank	Black Tern	Bosnian Blue
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Charadriiformes (Charadriiformes)	Lepidoptera (Butterflies & Moths)
Family	Laridae	Lycaenidae
Genus	Chlidonias	Agriades
Species	Chlidonias niger	Agriades dardanus

Evolutionary Relationship

Black Tern and Bosnian Blue share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Black Tern

LC — Least Concern

Bosnian Blue

NT — Near Threatened

Physical Characteristics

Attribute	Black Tern	Bosnian Blue
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Tern

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Bosnian Blue

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (6 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Black Tern

Black Tern (Chlidonias niger) 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.

Bosnian Blue

The Bosnian Blue (Agriades dardanus) 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.