Long-tailed Sylph vs Pacific Spiny-rat

Aglaiocercus kingii compared with Proechimys decumanus

Key Differences

• Long-tailed Sylph is Least Concern while Pacific Spiny-rat is Near Threatened.

Taxonomic Classification

Rank	Long-tailed Sylph	Pacific Spiny-rat
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (burung)	Mammalia (mamalia)
Order	Apodiformes (Apodiformes)	Rodentia (hewan pengerat)
Family	Trochilidae	Echimyidae
Genus	Aglaiocercus	Proechimys
Species	Aglaiocercus kingii	Proechimys decumanus

Evolutionary Relationship

Long-tailed Sylph and Pacific Spiny-rat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Pacific Spiny-rat

NT — Near Threatened

Physical Characteristics

Attribute	Long-tailed Sylph	Pacific Spiny-rat
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.

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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:

🇪🇨 Ecuador