Bare-legged Swiftlet vs

Aerodramus nuditarsus compared with Fuscidea praeruptorum

Key Differences

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

Taxonomic Classification

Rank	Bare-legged Swiftlet
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Apodiformes (Apodiformes)	Umbilicariales (Umbilicariales)
Family	Apodidae	Fuscideaceae
Genus	Aerodramus	Fuscidea
Species	Aerodramus nuditarsus	Fuscidea praeruptorum

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

VU — Vulnerable

Physical Characteristics

Attribute	Bare-legged Swiftlet
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.

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Sweden, and United States. 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.

Fuscidea praeruptorum is a crustose lichen in the family Fuscideaceae, assessed as Vulnerable (VU). It grows on siliceous rock surfaces in stable, undisturbed habitats and is sensitive to air pollution and land use changes. Its vulnerable status reflects the restricted occurrence of suitable clean-air rocky substrates.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway