Bare-legged Swiftlet vs Eurasian beaver

Aerodramus nuditarsus compared with Castor fiber

Key Differences

• Bare-legged Swiftlet is Least Concern while Eurasian beaver is Vulnerable.

Taxonomic Classification

Rank	Bare-legged Swiftlet	Eurasian beaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Rodentia (Rodents)
Family	Apodidae	Castoridae (Beavers)
Genus	Aerodramus	Castor (Beavers)
Species	Aerodramus nuditarsus	Castor fiber

Evolutionary Relationship

Bare-legged Swiftlet and Eurasian beaver share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bare-legged Swiftlet

LC — Least Concern

Eurasian beaver

VU — Vulnerable

Physical Characteristics

Attribute	Bare-legged Swiftlet	Eurasian beaver
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.

Eurasian beaver

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries). Currently classified as Vulnerable 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.

Eurasian beaver

Eurasian beaver (Castor fiber) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway