Long-tailed Sylph vs smooth hound

Aglaiocercus kingii compared with Mustelus mustelus

Key Differences

• Long-tailed Sylph is Least Concern while smooth hound is Not Evaluated.

Taxonomic Classification

Rank	Long-tailed Sylph	smooth hound
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Chondrichthyes (Cartilaginous Fish)
Order	Apodiformes (Apodiformes)	Carcharhiniformes (Ground Sharks)
Family	Trochilidae	Triakidae
Genus	Aglaiocercus	Mustelus
Species	Aglaiocercus kingii	Mustelus mustelus

Evolutionary Relationship

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

Conservation Status

Long-tailed Sylph

LC — Least Concern

smooth hound

NE — Not Evaluated

Physical Characteristics

Attribute	Long-tailed Sylph	smooth hound
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.

smooth hound

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway