Bare-legged Swiftlet vs Upper Crust

Aerodramus nuditarsus compared with Amaurodon cyaneus

Key Differences

• Bare-legged Swiftlet is Least Concern while Upper Crust is Vulnerable.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Upper Crust
Kingdom	Animalia (동물)	Fungi (균계)
Phylum	Chordata (척삭동물)	Basidiomycota (담자균류)
Class	Aves (새)	Agaricomycetes (주름버섯강)
Order	Apodiformes (칼새목)	Thelephorales (사마귀버섯목)
Family	Apodidae	Thelephoraceae
Genus	Aerodramus	Amaurodon
Species	Aerodramus nuditarsus	Amaurodon cyaneus

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Upper Crust

VU — Vulnerable

Physical Characteristics

Attribute	Bare-legged Swiftlet	Upper Crust
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bare-legged Swiftlet

Habitat

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

Range

Found in Norway.

Upper Crust

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway