Fox Sparrow vs Long-tailed Sylph

Passerella iliaca compared with Aglaiocercus kingii

Key Differences

• Fox Sparrow is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Fox Sparrow	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Passeriformes (Songbirds)	Apodiformes (Apodiformes)
Family	Passerellidae	Trochilidae
Genus	Passerella	Aglaiocercus
Species	Passerella iliaca	Aglaiocercus kingii

Evolutionary Relationship

Fox Sparrow and Long-tailed Sylph share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Fox Sparrow

NE — Not Evaluated

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Fox Sparrow	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Fox Sparrow

Habitat

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

Range

Distributed across Denmark, Norway, and United States.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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