Atiu Swiftlet vs hemlock water-dropwort

Aerodramus sawtelli compared with Oenanthe crocata

Key Differences

• Atiu Swiftlet is Vulnerable while hemlock water-dropwort is Near Threatened.

Taxonomic Classification

Rank	Atiu Swiftlet	hemlock water-dropwort
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Passeriformes (Songbirds)
Family	Apodidae	Muscicapidae
Genus	Aerodramus	Oenanthe
Species	Aerodramus sawtelli	Oenanthe crocata

Evolutionary Relationship

Atiu Swiftlet and hemlock water-dropwort share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Atiu Swiftlet

VU — Vulnerable

hemlock water-dropwort

NT — Near Threatened

Physical Characteristics

Attribute	Atiu Swiftlet	hemlock water-dropwort
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.

hemlock water-dropwort

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate grasslands and steppes, and flooded grasslands and savannas, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Argentina, Belgium, Denmark, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.