Eurasian beaver vs Olive-haired Swift

Castor fiber compared with Borbo borbonica

Key Differences

• Eurasian beaver is Vulnerable while Olive-haired Swift is Not Evaluated.

Taxonomic Classification

Rank	Eurasian beaver	Olive-haired Swift
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Rodentia (Rodents)	Lepidoptera (Butterflies & Moths)
Family	Castoridae (Beavers)	Hesperiidae
Genus	Castor (Beavers)	Borbo
Species	Castor fiber	Borbo borbonica

Evolutionary Relationship

Eurasian beaver and Olive-haired Swift share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Eurasian beaver

VU — Vulnerable

Olive-haired Swift

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian beaver	Olive-haired Swift
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Olive-haired Swift

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found in Spain.

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.