Japanese Weasel vs Redhead

Mustela itatsi compared with Aythya americana

Key Differences

• Japanese Weasel is Near Threatened while Redhead is Not Evaluated.

Taxonomic Classification

Rank	Japanese Weasel	Redhead
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Anseriformes (Anseriformes)
Family	Mustelidae (Weasels & Otters)	Anatidae
Genus	Mustela	Aythya
Species	Mustela itatsi	Aythya americana

Evolutionary Relationship

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

Conservation Status

Japanese Weasel

NT — Near Threatened

Redhead

NE — Not Evaluated

Physical Characteristics

Attribute	Japanese Weasel	Redhead
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.

Redhead

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

Redhead

Redhead (Aythya americana) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.