Bare-legged Swiftlet vs Butterfly ray

Aerodramus nuditarsus compared with Gymnura altavela

Key Differences

• Bare-legged Swiftlet is Least Concern while Butterfly ray is Endangered.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Butterfly ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Elasmobranchii
Order	Apodiformes (Apodiformes)	Myliobatiformes (Myliobatiformes)
Family	Apodidae	Gymnuridae
Genus	Aerodramus	Gymnura
Species	Aerodramus nuditarsus	Gymnura altavela

Evolutionary Relationship

Bare-legged Swiftlet and Butterfly ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Butterfly ray

EN — Endangered

Physical Characteristics

Attribute	Bare-legged Swiftlet	Butterfly ray
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.

Butterfly ray

Habitat

Native to South America, inhabiting ecosystems characteristic of the region.

Range

Found in Venezuela. 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.

Butterfly ray

The Butterfly ray (Gymnura altavela) is a species in the genus Gymnura. It is currently classified as Endangered on the IUCN Red List. Native to South America, inhabiting ecosystems characteristic of the region.