Japanese Weasel vs Olive-Backed Thrush

Mustela itatsi compared with Catharus ustulatus

Key Differences

• Japanese Weasel is Near Threatened while Olive-Backed Thrush is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Olive-Backed Thrush
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Passeriformes (Songbirds)
Family	Mustelidae (Weasels & Otters)	Turdidae
Genus	Mustela	Catharus
Species	Mustela itatsi	Catharus ustulatus

Evolutionary Relationship

Japanese Weasel and Olive-Backed Thrush share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Japanese Weasel

NT — Near Threatened

Olive-Backed Thrush

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Olive-Backed Thrush
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Japanese Weasel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Japan. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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).

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.