Clouded Leopard vs Long-tailed Sylph

Neofelis nebulosa compared with Aglaiocercus kingii

Key Differences

• Clouded Leopard is Vulnerable while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Clouded Leopard	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Apodiformes (Apodiformes)
Family	Felidae (Cats)	Trochilidae
Genus	Neofelis (Clouded Leopards)	Aglaiocercus
Species	Neofelis nebulosa	Aglaiocercus kingii

Evolutionary Relationship

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

Conservation Status

Clouded Leopard

VU — Vulnerable

Population: ~10.0K

Trend: Decreasing ↓

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Clouded Leopard	Long-tailed Sylph
Diet	Carnivore	—
Average Lifespan	15 years	—
Average Length	1.0 m	—
Average Weight	20.0 kg	—

Habitat & Geographic Range

Clouded Leopard

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types spanning the Australasia and Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across China, Indonesia, Malaysia, Myanmar, and Thailand. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Clouded Leopard

A medium-sized wild cat weighing up to 26 kg, clouded leopards inhabit tropical and subtropical forests from the eastern Himalayas through Southeast Asia to Borneo. Named for their distinctive cloud-like coat markings, they possess the longest canine teeth relative to skull size of any wild cat and are exceptional climbers able to descend trees headfirst. Vulnerable due to deforestation, though the total population remains poorly known.

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.