Chestnut Teal vs Japanese Weasel

Anas castanea compared with Mustela itatsi

Key Differences

• Chestnut Teal is Least Concern while Japanese Weasel is Near Threatened.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Chestnut Teal

LC — Least Concern

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Chestnut Teal	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Teal

Habitat

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

Range

Found across Europe (8 countries).

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.

Chestnut Teal

Chestnut Teal (Anas castanea) 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.