Atiu Swiftlet vs Greater Crested Tern

Aerodramus sawtelli compared with Thalasseus bergii

Key Differences

• Atiu Swiftlet is Vulnerable while Greater Crested Tern is Least Concern.

Taxonomic Classification

Rank	Atiu Swiftlet	Greater Crested Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Charadriiformes (Charadriiformes)
Family	Apodidae	Laridae
Genus	Aerodramus	Thalasseus
Species	Aerodramus sawtelli	Thalasseus bergii

Evolutionary Relationship

Atiu Swiftlet and Greater Crested Tern share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Atiu Swiftlet

VU — Vulnerable

Greater Crested Tern

LC — Least Concern

Physical Characteristics

Attribute	Atiu Swiftlet	Greater Crested Tern
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.

Greater Crested Tern

Habitat

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

Range

Found in Norway.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway