Long-tailed Sylph vs Slender-billed Grackle

Aglaiocercus kingii compared with Quiscalus palustris

Key Differences

• Long-tailed Sylph is Least Concern while Slender-billed Grackle is Extinct.

Taxonomic Classification

Rank	Long-tailed Sylph	Slender-billed Grackle
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	Icteridae
Genus	Aglaiocercus	Quiscalus
Species	Aglaiocercus kingii	Quiscalus palustris

Evolutionary Relationship

Long-tailed Sylph and Slender-billed Grackle share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Slender-billed Grackle

EX — Extinct

Physical Characteristics

Attribute	Long-tailed Sylph	Slender-billed Grackle
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.

Slender-billed Grackle

Habitat

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

Range

Found in Norway.

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