Atiu Swiftlet vs Bigeye Numbfish

Aerodramus sawtelli compared with Narcine oculifera

Key Differences

• Atiu Swiftlet is Vulnerable while Bigeye Numbfish is Data Deficient.

Taxonomic Classification

Rank	Atiu Swiftlet	Bigeye Numbfish
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Elasmobranchii
Order	Apodiformes (Apodiformes)	Torpediniformes (electric ray)
Family	Apodidae	Narcinidae
Genus	Aerodramus	Narcine
Species	Aerodramus sawtelli	Narcine oculifera

Evolutionary Relationship

Atiu Swiftlet and Bigeye Numbfish share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Atiu Swiftlet

VU — Vulnerable

Bigeye Numbfish

DD — Data Deficient

Physical Characteristics

Attribute	Atiu Swiftlet	Bigeye Numbfish
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Atiu Swiftlet

Habitat

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

Range

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

Bigeye Numbfish

Atiu Swiftlet

The Atiu Swiftlet (Aerodramus sawtelli) is a species in the genus Aerodramus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Bigeye Numbfish

The Bigeye Numbfish (Narcine oculifera) is a species in the genus Narcine.