Bare-legged Swiftlet vs Black-breasted Puffleg

Aerodramus nuditarsus compared with Eriocnemis nigrivestis

Key Differences

• Bare-legged Swiftlet is Least Concern while Black-breasted Puffleg is Endangered.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Black-breasted Puffleg
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Apodiformes (Apodiformes)	Apodiformes (Apodiformes)
Family	Apodidae	Trochilidae
Genus	Aerodramus	Eriocnemis
Species	Aerodramus nuditarsus	Eriocnemis nigrivestis

Evolutionary Relationship

Bare-legged Swiftlet and Black-breasted Puffleg share a common ancestor at the Order level: Apodiformes. (Apodiformes)

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Black-breasted Puffleg

EN — Endangered

Physical Characteristics

Attribute	Bare-legged Swiftlet	Black-breasted Puffleg
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.

Black-breasted Puffleg

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Ecuador and Norway. Currently classified as Endangered 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.

Black-breasted Puffleg

The Black-breasted Puffleg (Eriocnemis nigrivestis) is a species in the genus Eriocnemis. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway