Big-eared opossum vs Chimney Swift

Didelphis aurita compared with Chaetura pelagica

Key Differences

• Big-eared opossum is Least Concern while Chimney Swift is Near Threatened.

Taxonomic Classification

Rank	Big-eared opossum	Chimney Swift
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Didelphimorphia (Didelphimorphia)	Apodiformes (Apodiformes)
Family	Didelphidae	Apodidae
Genus	Didelphis	Chaetura
Species	Didelphis aurita	Chaetura pelagica

Evolutionary Relationship

Big-eared opossum and Chimney Swift share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Big-eared opossum

LC — Least Concern

Chimney Swift

NT — Near Threatened

Physical Characteristics

Attribute	Big-eared opossum	Chimney Swift
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Big-eared opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Chimney Swift

Habitat

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

Range

Widely distributed across Europe (Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, Venezuela). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Big-eared opossum

The Big-eared opossum (Didelphis aurita) is a species in the genus Didelphis. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Chimney Swift

Chimney Swift (Chaetura pelagica) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.