Long-tailed Sylph vs Sombre Rockchat

Aglaiocercus kingii compared with Oenanthe dubia

Key Differences

• Long-tailed Sylph is Least Concern while Sombre Rockchat is Data Deficient.

Taxonomic Classification

Rank	Long-tailed Sylph	Sombre Rockchat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Passeriformes (Songbirds)
Family	Trochilidae	Muscicapidae
Genus	Aglaiocercus	Oenanthe
Species	Aglaiocercus kingii	Oenanthe dubia

Evolutionary Relationship

Long-tailed Sylph and Sombre Rockchat share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Sombre Rockchat

DD — Data Deficient

Physical Characteristics

Attribute	Long-tailed Sylph	Sombre Rockchat
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.

Sombre Rockchat

Habitat

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

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.