Field Sparrow vs Japanese Weasel

Spizella pusilla compared with Mustela itatsi

Key Differences

• Field Sparrow is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Field Sparrow	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Carnivora (Carnivorans)
Family	Passerellidae	Mustelidae (Weasels & Otters)
Genus	Spizella	Mustela
Species	Spizella pusilla	Mustela itatsi

Evolutionary Relationship

Field Sparrow and Japanese Weasel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Field Sparrow

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Field Sparrow	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Field Sparrow

Habitat

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

Range

Distributed across Norway and United States.

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.