Bare-legged Swiftlet vs Warty Beard Lichen

Aerodramus nuditarsus compared with Usnea ceratina

Key Differences

• Bare-legged Swiftlet is Least Concern while Warty Beard Lichen is Extinct.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Warty Beard Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Apodiformes (Apodiformes)	Lecanorales (Lecanorales)
Family	Apodidae	Parmeliaceae
Genus	Aerodramus	Usnea
Species	Aerodramus nuditarsus	Usnea ceratina

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Warty Beard Lichen

EX — Extinct

Physical Characteristics

Attribute	Bare-legged Swiftlet	Warty Beard Lichen
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.

Warty Beard Lichen

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (Norway, Portugal, Sweden), North America (United States), and South America (Colombia).

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