Long-tailed Sylph vs Rusty-backed Thrush

Aglaiocercus kingii compared with Geokichla erythronota

Key Differences

• Long-tailed Sylph is Least Concern while Rusty-backed Thrush is Near Threatened.

Taxonomic Classification

Rank	Long-tailed Sylph	Rusty-backed Thrush
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Passeriformes (Songbirds)
Family	Trochilidae	Turdidae
Genus	Aglaiocercus	Geokichla
Species	Aglaiocercus kingii	Geokichla erythronota

Evolutionary Relationship

Long-tailed Sylph and Rusty-backed Thrush share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Rusty-backed Thrush

NT — Near Threatened

Physical Characteristics

Attribute	Long-tailed Sylph	Rusty-backed Thrush
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.

Rusty-backed Thrush

Habitat

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

Range

Found in Norway. 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:

🇳🇴 Norway