Небесный сильф vs Rough-Tailed

Aglaiocercus kingii compared with Bathytoshia centroura

Key Differences

• Небесный сильф is Least Concern while Rough-Tailed is Vulnerable.

Taxonomic Classification

Rank	Небесный сильф	Rough-Tailed
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Aves (птицы)	Elasmobranchii
Order	Apodiformes (стрижеобразные)	Myliobatiformes (хвостоколообразные)
Family	Trochilidae	Dasyatidae
Genus	Aglaiocercus	Bathytoshia
Species	Aglaiocercus kingii	Bathytoshia centroura

Evolutionary Relationship

Небесный сильф and Rough-Tailed share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Небесный сильф

LC — Least Concern

Rough-Tailed

VU — Vulnerable

Physical Characteristics

Attribute	Небесный сильф	Rough-Tailed
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Небесный сильф

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Rough-Tailed

Небесный сильф

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.