Eastern Mountain Avens vs Long-tailed Sylph

Geum peckii compared with Aglaiocercus kingii

Key Differences

• Eastern Mountain Avens is Near Threatened while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Eastern Mountain Avens	Long-tailed Sylph
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Rosales (Roses & Allies)	Apodiformes (Apodiformes)
Family	Rosaceae (Rose Family)	Trochilidae
Genus	Geum	Aglaiocercus
Species	Geum peckii	Aglaiocercus kingii

Conservation Status

Eastern Mountain Avens

NT — Near Threatened

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Eastern Mountain Avens	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eastern Mountain Avens

Habitat

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

Range

Distributed across Canada and United States. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Long-tailed Sylph

One of the most strikingly ornamented hummingbirds, male long-tailed sylphs have iridescent green plumage and dramatically elongated, ribbon-like outer tail feathers reaching up to 22 cm — over three times the body length. Found in Andean cloud forests of Colombia and Venezuela, they inhabit humid montane forest between 1,400–2,800 meters elevation. Males perform elaborate display flights to attract females. Their extravagant tails are a classic example of sexual selection via female preference.