Long-tailed Ground Squirrel vs River Tern

Urocitellus undulatus compared with Sterna aurantia

Key Differences

• Long-tailed Ground Squirrel is Least Concern while River Tern is Vulnerable.

Taxonomic Classification

Rank	Long-tailed Ground Squirrel	River Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Charadriiformes (Charadriiformes)
Family	Sciuridae (Squirrels)	Laridae
Genus	Urocitellus	Sterna
Species	Urocitellus undulatus	Sterna aurantia

Evolutionary Relationship

Long-tailed Ground Squirrel and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Long-tailed Ground Squirrel

LC — Least Concern

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Long-tailed Ground Squirrel	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Ground Squirrel

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.