Long-tailed Sylph vs Rough-Tailed

Aglaiocercus kingii compared with Bathytoshia centroura

Key Differences

• Long-tailed Sylph is Least Concern while Rough-Tailed is Vulnerable.

Taxonomic Classification

Rank	Long-tailed Sylph	Rough-Tailed
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Elasmobranchii
Order	Apodiformes (Apodiformes)	Myliobatiformes (Myliobatiformes)
Family	Trochilidae	Dasyatidae
Genus	Aglaiocercus	Bathytoshia
Species	Aglaiocercus kingii	Bathytoshia centroura

Evolutionary Relationship

Long-tailed Sylph and Rough-Tailed share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Rough-Tailed

VU — Vulnerable

Physical Characteristics

Attribute	Long-tailed Sylph	Rough-Tailed
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.

Rough-Tailed

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.