Long-tailed Sylph vs Rough-Legged Buzzard

Aglaiocercus kingii compared with Buteo lagopus

Key Differences

• Long-tailed Sylph is Least Concern while Rough-Legged Buzzard is Near Threatened.

Taxonomic Classification

Rank	Long-tailed Sylph	Rough-Legged Buzzard
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Apodiformes (Apodiformes)	Accipitriformes (Hawks & Eagles)
Family	Trochilidae	Accipitridae (Hawks & Eagles)
Genus	Aglaiocercus	Buteo
Species	Aglaiocercus kingii	Buteo lagopus

Evolutionary Relationship

Long-tailed Sylph and Rough-Legged Buzzard share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Rough-Legged Buzzard

NT — Near Threatened

Physical Characteristics

Attribute	Long-tailed Sylph	Rough-Legged Buzzard
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Rough-Legged Buzzard

Habitat

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

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Rough-Legged Buzzard

Rough-Legged Buzzard (Buteo lagopus) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway