Black-breasted Puffleg vs Japanese Weasel

Eriocnemis nigrivestis compared with Mustela itatsi

Key Differences

Black-breasted Puffleg is Endangered while Japanese Weasel is Near Threatened.

Taxonomic Classification

Rank	Black-breasted Puffleg	Japanese Weasel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Carnivora (Carnivorans)
Family	Trochilidae	Mustelidae (Weasels & Otters)
Genus	Eriocnemis	Mustela
Species	Eriocnemis nigrivestis	Mustela itatsi

Evolutionary Relationship

Black-breasted Puffleg and Japanese Weasel share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Black-breasted Puffleg

EN — Endangered

Japanese Weasel

NT — Near Threatened

Physical Characteristics

Attribute	Black-breasted Puffleg	Japanese Weasel
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-breasted Puffleg

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Distributed across Ecuador and Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

Black-breasted Puffleg

The Black-breasted Puffleg (Eriocnemis nigrivestis) is a species in the genus Eriocnemis. It is currently classified as Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.