Aders' duiker vs Небесный сильф

Cephalophus adersi compared with Aglaiocercus kingii

Key Differences

• Aders' duiker is Critically Endangered while Небесный сильф is Least Concern.

Taxonomic Classification

Rank	Aders' duiker	Небесный сильф
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Aves (птицы)
Order	Artiodactyla (парнокопытные)	Apodiformes (стрижеобразные)
Family	Bovidae (Bovids)	Trochilidae
Genus	Cephalophus	Aglaiocercus
Species	Cephalophus adersi	Aglaiocercus kingii

Evolutionary Relationship

Aders' duiker and Небесный сильф share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Aders' duiker

CR — Critically Endangered

Небесный сильф

LC — Least Concern

Physical Characteristics

Attribute	Aders' duiker	Небесный сильф
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aders' duiker

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Небесный сильф

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Aders' duiker

The Aders' duiker (Cephalophus adersi) is a species in the genus Cephalophus. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 5 distinct biome types within the Afrotropic biogeo.

Небесный сильф

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.