Caucasian Birch Mouse vs Olive-Backed Thrush

Sicista caucasica compared with Catharus ustulatus

Key Differences

• Caucasian Birch Mouse is Near Threatened while Olive-Backed Thrush is Least Concern.

Taxonomic Classification

Rank	Caucasian Birch Mouse	Olive-Backed Thrush
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Dipodidae	Turdidae
Genus	Sicista	Catharus
Species	Sicista caucasica	Catharus ustulatus

Evolutionary Relationship

Caucasian Birch Mouse and Olive-Backed Thrush share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Caucasian Birch Mouse

NT — Near Threatened

Olive-Backed Thrush

LC — Least Concern

Physical Characteristics

Attribute	Caucasian Birch Mouse	Olive-Backed Thrush
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Caucasian Birch Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Olive-Backed Thrush

Habitat

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

Range

Widely distributed across Europe (Denmark, Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Caucasian Birch Mouse

The Caucasian Birch Mouse (Sicista caucasica) is a species in the genus Sicista. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Olive-Backed Thrush

Olive-Backed Thrush (Catharus ustulatus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.