Japanese Weasel vs Stygian Owl

Mustela itatsi compared with Asio stygius

Key Differences

• Japanese Weasel is Near Threatened while Stygian Owl is Least Concern.

Taxonomic Classification

Rank	Japanese Weasel	Stygian Owl
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Strigiformes (Owls)
Family	Mustelidae (Weasels & Otters)	Strigidae (True Owls)
Genus	Mustela	Asio
Species	Mustela itatsi	Asio stygius

Evolutionary Relationship

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

Conservation Status

Japanese Weasel

NT — Near Threatened

Stygian Owl

LC — Least Concern

Physical Characteristics

Attribute	Japanese Weasel	Stygian Owl
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.

Stygian Owl

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Stygian Owl

Stygian Owl (Asio stygius) 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.