Bare-legged Swiftlet vs Brook Alder

Aerodramus nuditarsus compared with Alnus maritima

Key Differences

• Bare-legged Swiftlet is Least Concern while Brook Alder is Endangered.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Brook Alder
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Aves (Birds)	Magnoliopsida (Dicots)
Order	Apodiformes (Apodiformes)	Fagales (Beeches & Oaks)
Family	Apodidae	Betulaceae
Genus	Aerodramus	Alnus
Species	Aerodramus nuditarsus	Alnus maritima

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Bare-legged Swiftlet	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bare-legged Swiftlet

Habitat

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

Range

Found in Norway.

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Bare-legged Swiftlet

The Bare-legged Swiftlet (Aerodramus nuditarsus) is a species in the genus Aerodramus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.