Bare-legged Swiftlet vs Brown Booby

Aerodramus nuditarsus compared with Sula leucogaster

Taxonomic Classification

Rank	Bare-legged Swiftlet	Brown Booby
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Suliformes (Suliformes)
Family	Apodidae	Sulidae
Genus	Aerodramus	Sula
Species	Aerodramus nuditarsus	Sula leucogaster

Evolutionary Relationship

Bare-legged Swiftlet and Brown Booby share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Brown Booby

LC — Least Concern

Physical Characteristics

Attribute	Bare-legged Swiftlet	Brown Booby
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.

Brown Booby

Habitat

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

Range

Widely distributed across Europe (Denmark, Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, Venezuela).

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.

Brown Booby

Brown Booby (Sula leucogaster) 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway