Bare-legged Swiftlet vs Long-tailed Sylph

Aerodramus nuditarsus compared with Aglaiocercus kingii

Taxonomic Classification

Rank	Bare-legged Swiftlet	Long-tailed Sylph
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum same	Chordata (حبليات)	Chordata (حبليات)
Class same	Aves (طيور)	Aves (طيور)
Order same	Apodiformes (سماميات)	Apodiformes (سماميات)
Family	Apodidae	Trochilidae
Genus	Aerodramus	Aglaiocercus
Species	Aerodramus nuditarsus	Aglaiocercus kingii

Evolutionary Relationship

Bare-legged Swiftlet and Long-tailed Sylph share a common ancestor at the Order level: Apodiformes. (سماميات)

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Bare-legged Swiftlet	Long-tailed Sylph
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.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and 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.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway