Beautiful Pearl vs Black-thighed Puffleg

Agrotera nemoralis compared with Eriocnemis derbyi

Key Differences

Beautiful Pearl is Least Concern while Black-thighed Puffleg is Near Threatened.

Taxonomic Classification

Rank	Beautiful Pearl	Black-thighed Puffleg
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Apodiformes (Apodiformes)
Family	Crambidae	Trochilidae
Genus	Agrotera	Eriocnemis
Species	Agrotera nemoralis	Eriocnemis derbyi

Evolutionary Relationship

Beautiful Pearl and Black-thighed Puffleg share a common ancestor at the Kingdom level: Animalia. (Animals)

View Kingdom: Animalia

Conservation Status

Beautiful Pearl

LC — Least Concern

Black-thighed Puffleg

NT — Near Threatened

Physical Characteristics

Attribute	Beautiful Pearl	Black-thighed Puffleg
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beautiful Pearl

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Taiwan.

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.

Beautiful Pearl

The Beautiful Pearl (Agrotera nemoralis) is a species in the genus Agrotera. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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.