American red squirrel vs Black-thighed Puffleg

Tamiasciurus hudsonicus compared with Eriocnemis derbyi

Key Differences

• American red squirrel is Not Evaluated while Black-thighed Puffleg is Near Threatened.

Taxonomic Classification

Rank	American red squirrel	Black-thighed Puffleg
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Apodiformes (Apodiformes)
Family	Sciuridae (Squirrels)	Trochilidae
Genus	Tamiasciurus	Eriocnemis
Species	Tamiasciurus hudsonicus	Eriocnemis derbyi

Evolutionary Relationship

American red squirrel and Black-thighed Puffleg share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

American red squirrel

NE — Not Evaluated

Black-thighed Puffleg

NT — Near Threatened

Physical Characteristics

Attribute	American red squirrel	Black-thighed Puffleg
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

American red squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Europe (6 countries) and North America (United States).

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.

American red squirrel

The American red squirrel (Tamiasciurus hudsonicus) is a species in the genus Tamiasciurus. 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway