Voọc chà vá chân xám vs Long-tailed Sylph

Pygathrix cinerea compared with Aglaiocercus kingii

Key Differences

• Voọc chà vá chân xám is Critically Endangered while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Voọc chà vá chân xám	Long-tailed Sylph
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Mammalia (lớp Thú)	Aves (chim)
Order	Primates (bộ Linh trưởng)	Apodiformes (Bộ Yến)
Family	Cercopithecidae (Old World Monkeys)	Trochilidae
Genus	Pygathrix	Aglaiocercus
Species	Pygathrix cinerea	Aglaiocercus kingii

Evolutionary Relationship

Voọc chà vá chân xám and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Voọc chà vá chân xám

CR — Critically Endangered

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Voọc chà vá chân xám	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Voọc chà vá chân xám

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.