Long-tailed Sylph vs stump-tailed macaque

Aglaiocercus kingii compared with Macaca arctoides

Key Differences

• Long-tailed Sylph is Least Concern while stump-tailed macaque is Vulnerable.

Taxonomic Classification

Rank	Long-tailed Sylph	stump-tailed macaque
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Primates (Primates)
Family	Trochilidae	Cercopithecidae (Old World Monkeys)
Genus	Aglaiocercus	Macaca
Species	Aglaiocercus kingii	Macaca arctoides

Evolutionary Relationship

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

Conservation Status

Long-tailed Sylph

LC — Least Concern

stump-tailed macaque

VU — Vulnerable

Physical Characteristics

Attribute	Long-tailed Sylph	stump-tailed macaque
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.

stump-tailed macaque

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Cuba. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.