bay duiker vs Long-tailed Sylph

Cephalophus dorsalis compared with Aglaiocercus kingii

Key Differences

• bay duiker is Near Threatened while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	bay duiker	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Artiodactyla (Even-toed Ungulates)	Apodiformes (Apodiformes)
Family	Bovidae (Bovids)	Trochilidae
Genus	Cephalophus	Aglaiocercus
Species	Cephalophus dorsalis	Aglaiocercus kingii

Evolutionary Relationship

bay duiker and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

bay duiker

NT — Near Threatened

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	bay duiker	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

bay duiker

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

bay duiker

The Bay duiker (Cephalophus dorsalis) is a species in the genus Cephalophus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic 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.