Patagonian Weasel vs River Tern

Lyncodon patagonicus compared with Sterna aurantia

Key Differences

• Patagonian Weasel is Least Concern while River Tern is Vulnerable.

Taxonomic Classification

Rank	Patagonian Weasel	River Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Charadriiformes (Charadriiformes)
Family	Mustelidae (Weasels & Otters)	Laridae
Genus	Lyncodon	Sterna
Species	Lyncodon patagonicus	Sterna aurantia

Evolutionary Relationship

Patagonian Weasel and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Patagonian Weasel

LC — Least Concern

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Patagonian Weasel	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Patagonian Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

River Tern

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.