Bay-vented Cotinga vs Long-tailed Sylph

Doliornis sclateri compared with Aglaiocercus kingii

Key Differences

• Bay-vented Cotinga is Vulnerable while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Bay-vented Cotinga	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	Cotingidae	Trochilidae
Genus	Doliornis	Aglaiocercus
Species	Doliornis sclateri	Aglaiocercus kingii

Evolutionary Relationship

Bay-vented Cotinga and Long-tailed Sylph share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Bay-vented Cotinga

VU — Vulnerable

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Bay-vented Cotinga	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bay-vented Cotinga

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Bay-vented Cotinga

The Bay-vented Cotinga (Doliornis sclateri) is a species in the genus Doliornis. It is currently classified as Vulnerable on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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