Balkan Fritillary vs Bare-legged Swiftlet

Boloria graeca compared with Aerodramus nuditarsus

Key Differences

• Balkan Fritillary is Near Threatened while Bare-legged Swiftlet is Least Concern.

Taxonomic Classification

Rank	Balkan Fritillary	Bare-legged Swiftlet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Apodiformes (Apodiformes)
Family	Nymphalidae (Brush-footed Butterflies)	Apodidae
Genus	Boloria	Aerodramus
Species	Boloria graeca	Aerodramus nuditarsus

Evolutionary Relationship

Balkan Fritillary and Bare-legged Swiftlet share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Balkan Fritillary

NT — Near Threatened

Bare-legged Swiftlet

LC — Least Concern

Physical Characteristics

Attribute	Balkan Fritillary	Bare-legged Swiftlet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Balkan Fritillary

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (9 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bare-legged Swiftlet

Habitat

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

Range

Found in Norway.

Balkan Fritillary

The Balkan Fritillary (Boloria graeca) is a species in the genus Boloria. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Bare-legged Swiftlet

The Bare-legged Swiftlet (Aerodramus nuditarsus) is a species in the genus Aerodramus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.