Atiu Swiftlet vs Lesser Siren

Aerodramus sawtelli compared with Siren intermedia

Key Differences

• Atiu Swiftlet is Vulnerable while Lesser Siren is Least Concern.

Taxonomic Classification

Rank	Atiu Swiftlet	Lesser Siren
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Apodiformes (Apodiformes)	Caudata (Caudata)
Family	Apodidae	Sirenidae
Genus	Aerodramus	Siren
Species	Aerodramus sawtelli	Siren intermedia

Evolutionary Relationship

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

Conservation Status

Atiu Swiftlet

VU — Vulnerable

Lesser Siren

LC — Least Concern

Physical Characteristics

Attribute	Atiu Swiftlet	Lesser Siren
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.

Lesser Siren

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Distributed across Belgium and Mexico.

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.