Koko'olau vs Long-tailed Sylph

Bidens amplectens compared with Aglaiocercus kingii

Key Differences

  • Koko'olau is Vulnerable while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank Koko'olau Long-tailed Sylph
Kingdom Plantae (Plants) Animalia (Animals)
Phylum Magnoliophyta (Flowering Plants) Chordata (Chordates)
Class Magnoliopsida (Dicots) Aves (Birds)
Order Asterales (Daisies & Sunflowers) Apodiformes (Apodiformes)
Family Asteraceae (Daisy Family) Trochilidae
Genus Bidens Aglaiocercus
Species Bidens amplectens Aglaiocercus kingii

Conservation Status

Koko'olau

VU — Vulnerable

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute Koko'olau Long-tailed Sylph
Diet
Average Lifespan
Average Length
Average Weight

Habitat & Geographic Range

Koko'olau

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Koko'olau

No description available.

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.

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