Long-tailed Sylph vs Variable Bluet

Aglaiocercus kingii compared with Coenagrion pulchellum

Key Differences

• Long-tailed Sylph is Least Concern while Variable Bluet is Endangered.

Taxonomic Classification

Rank	Long-tailed Sylph	Variable Bluet
Kingdom same	Animalia (حيوانات)	Animalia (حيوانات)
Phylum	Chordata (حبليات)	Arthropoda (مفصليات الأرجل)
Class	Aves (طيور)	Insecta (حشرات)
Order	Apodiformes (سماميات)	Odonata (يعسوبيات)
Family	Trochilidae	Coenagrionidae
Genus	Aglaiocercus	Coenagrion
Species	Aglaiocercus kingii	Coenagrion pulchellum

Evolutionary Relationship

Long-tailed Sylph and Variable Bluet share a common ancestor at the Kingdom level: Animalia. (حيوانات)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Variable Bluet

EN — Endangered

Physical Characteristics

Attribute	Long-tailed Sylph	Variable Bluet
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.

Variable Bluet

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Luxembourg, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Variable Bluet

Variable Bluet (Coenagrion pulchellum) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway