Bald Cavalier vs Long-tailed Sylph

Melanoleuca melaleuca compared with Aglaiocercus kingii

Key Differences

• Bald Cavalier is Data Deficient while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Bald Cavalier	Long-tailed Sylph
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Aves (Birds)
Order	Agaricales (Gilled Mushrooms)	Apodiformes (Apodiformes)
Family	Tricholomataceae	Trochilidae
Genus	Melanoleuca	Aglaiocercus
Species	Melanoleuca melaleuca	Aglaiocercus kingii

Conservation Status

Bald Cavalier

DD — Data Deficient

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Bald Cavalier	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bald Cavalier

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Bald Cavalier

The Bald Cavalier (Melanoleuca melaleuca) is a species in the genus Melanoleuca. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment. Typically found in forest floors, decomposing wood, and soil ecosystems.

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