Eurasian beaver vs White-winged Tern

Castor fiber compared with Chlidonias leucopterus

Key Differences

• Eurasian beaver is Vulnerable while White-winged Tern is Not Evaluated.

Taxonomic Classification

Rank	Eurasian beaver	White-winged Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Charadriiformes (Charadriiformes)
Family	Castoridae (Beavers)	Laridae
Genus	Castor (Beavers)	Chlidonias
Species	Castor fiber	Chlidonias leucopterus

Evolutionary Relationship

Eurasian beaver and White-winged Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Eurasian beaver

VU — Vulnerable

White-winged Tern

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian beaver	White-winged Tern
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.

White-winged Tern

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States).

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.

White-winged Tern

White-winged Tern (Chlidonias leucopterus) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden