Black-thighed Puffleg vs Brook-Side Alder

Eriocnemis derbyi compared with Alnus serrulata

Key Differences

  • Black-thighed Puffleg is Near Threatened while Brook-Side Alder is Least Concern.

Taxonomic Classification

Rank Black-thighed Puffleg Brook-Side Alder
Kingdom Animalia (Animals) Plantae (Plants)
Phylum Chordata (Chordates) Magnoliophyta (Flowering Plants)
Class Aves (Birds) Magnoliopsida (Dicots)
Order Apodiformes (Apodiformes) Fagales (Beeches & Oaks)
Family Trochilidae Betulaceae
Genus Eriocnemis Alnus
Species Eriocnemis derbyi Alnus serrulata

Conservation Status

Black-thighed Puffleg

NT — Near Threatened

Brook-Side Alder

LC — Least Concern

Physical Characteristics

Attribute Black-thighed Puffleg Brook-Side Alder
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.

Brook-Side Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada 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.

Brook-Side Alder

The Brook-Side Alder (Alnus serrulata) is a species in the genus Alnus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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