Bare-legged Swiftlet vs Grasshopper Sparrow

Aerodramus nuditarsus compared with Ammodramus savannarum

Key Differences

• Bare-legged Swiftlet is Least Concern while Grasshopper Sparrow is Critically Endangered.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Grasshopper Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Passeriformes (Songbirds)
Family	Apodidae	Passerellidae
Genus	Aerodramus	Ammodramus
Species	Aerodramus nuditarsus	Ammodramus savannarum

Evolutionary Relationship

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

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Grasshopper Sparrow

CR — Critically Endangered

Physical Characteristics

Attribute	Bare-legged Swiftlet	Grasshopper Sparrow
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.

Grasshopper Sparrow

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Ecuador, Norway, and United States. Currently classified as Critically 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway