Atiu Swiftlet vs Lesser Scaup

Aerodramus sawtelli compared with Aythya affinis

Key Differences

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

Taxonomic Classification

Rank	Atiu Swiftlet	Lesser Scaup
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Anseriformes (Anseriformes)
Family	Apodidae	Anatidae
Genus	Aerodramus	Aythya
Species	Aerodramus sawtelli	Aythya affinis

Evolutionary Relationship

Atiu Swiftlet and Lesser Scaup share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Atiu Swiftlet

VU — Vulnerable

Lesser Scaup

LC — Least Concern

Physical Characteristics

Attribute	Atiu Swiftlet	Lesser Scaup
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 Scaup

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

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.

Lesser Scaup

Lesser Scaup (Aythya affinis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway