Black-breasted Puffleg vs Black-shouldered Opossum

Eriocnemis nigrivestis compared with Caluromysiops irrupta

Key Differences

• Black-breasted Puffleg is Endangered while Black-shouldered Opossum is Least Concern.

Taxonomic Classification

Rank	Black-breasted Puffleg	Black-shouldered Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Didelphimorphia (Didelphimorphia)
Family	Trochilidae	Didelphidae
Genus	Eriocnemis	Caluromysiops
Species	Eriocnemis nigrivestis	Caluromysiops irrupta

Evolutionary Relationship

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

Conservation Status

Black-breasted Puffleg

EN — Endangered

Black-shouldered Opossum

LC — Least Concern

Physical Characteristics

Attribute	Black-breasted Puffleg	Black-shouldered Opossum
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.

Black-shouldered Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.

Black-shouldered Opossum

The Black-shouldered Opossum (Caluromysiops irrupta) is a species in the genus Caluromysiops. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.