Black-thighed Puffleg vs Bornean Smooth-Tailed Treeshrew

Eriocnemis derbyi compared with Dendrogale melanura

Key Differences

• Black-thighed Puffleg is Near Threatened while Bornean Smooth-Tailed Treeshrew is Data Deficient.

Taxonomic Classification

Rank	Black-thighed Puffleg	Bornean Smooth-Tailed Treeshrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Scandentia (Scandentia)
Family	Trochilidae	Tupaiidae
Genus	Eriocnemis	Dendrogale
Species	Eriocnemis derbyi	Dendrogale melanura

Evolutionary Relationship

Black-thighed Puffleg and Bornean Smooth-Tailed Treeshrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-thighed Puffleg

NT — Near Threatened

Bornean Smooth-Tailed Treeshrew

DD — Data Deficient

Physical Characteristics

Attribute	Black-thighed Puffleg	Bornean Smooth-Tailed Treeshrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-thighed Puffleg

Habitat

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

Range

Distributed across Colombia, Ecuador, and Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Bornean Smooth-Tailed Treeshrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Black-thighed Puffleg

An Andean puffleg hummingbird named for the males' distinctive velvety black thighs contrasting with the characteristic white leg feather puffs, black-thighed pufflegs inhabit humid montane forest and forest edges in Ecuador and Colombia at elevations of 1,500–3,500 meters. Males display glittering green plumage with a violet-blue tail. Listed as Near Threatened due to deforestation of the Andean cloud forest, with populations declining as the specialized high-altitude forest habitat is cleared for agriculture.

Bornean Smooth-Tailed Treeshrew

The Bornean Smooth-tailed Treeshrew (Dendrogale melanura) is a species in the genus Dendrogale. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.