Long-tailed Sylph vs Treeline Emerald

Aglaiocercus kingii compared with Somatochlora sahlbergi

Key Differences

• Long-tailed Sylph is Least Concern while Treeline Emerald is Near Threatened.

Taxonomic Classification

Rank	Long-tailed Sylph	Treeline Emerald
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Apodiformes (Apodiformes)	Odonata (Odonata)
Family	Trochilidae	Corduliidae
Genus	Aglaiocercus	Somatochlora
Species	Aglaiocercus kingii	Somatochlora sahlbergi

Evolutionary Relationship

Long-tailed Sylph and Treeline Emerald share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Treeline Emerald

NT — Near Threatened

Physical Characteristics

Attribute	Long-tailed Sylph	Treeline Emerald
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Treeline Emerald

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway