Austral ray vs Bare-legged Swiftlet

Bathyraja griseocauda compared with Aerodramus nuditarsus

Key Differences

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

Taxonomic Classification

Rank	Austral ray	Bare-legged Swiftlet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Rajiformes (Rajiformes)	Apodiformes (Apodiformes)
Family	Arhynchobatidae	Apodidae
Genus	Bathyraja	Aerodramus
Species	Bathyraja griseocauda	Aerodramus nuditarsus

Evolutionary Relationship

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

Conservation Status

Austral ray

EN — Endangered

Bare-legged Swiftlet

LC — Least Concern

Physical Characteristics

Attribute	Austral ray	Bare-legged Swiftlet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Austral ray

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Chile. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bare-legged Swiftlet

Habitat

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

Range

Found in Norway.

Austral ray

The Austral ray (Bathyraja griseocauda) is a species in the genus Bathyraja. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

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.