Black-thighed Puffleg vs Brown Cobblestone Lichen

Eriocnemis derbyi compared with Acarospora fuscata

Key Differences

Black-thighed Puffleg is Near Threatened while Brown Cobblestone Lichen is Least Concern.

Taxonomic Classification

Rank	Black-thighed Puffleg	Brown Cobblestone Lichen
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Apodiformes (Apodiformes)	Acarosporales (Acarosporales)
Family	Trochilidae	Acarosporaceae
Genus	Eriocnemis	Acarospora
Species	Eriocnemis derbyi	Acarospora fuscata

Conservation Status

Black-thighed Puffleg

NT — Near Threatened

Brown Cobblestone Lichen

LC — Least Concern

Physical Characteristics

Attribute	Black-thighed Puffleg	Brown Cobblestone Lichen
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.

Brown Cobblestone Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and United States.

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.

Brown Cobblestone Lichen

The Brown Cobblestone Lichen (Acarospora fuscata) is a species in the genus Acarospora. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.