Long-tailed Sylph vs Thread Weed

Aglaiocercus kingii compared with Ulva compressa

Taxonomic Classification

Rank	Long-tailed Sylph	Thread Weed
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Chlorophyta (Chlorophyta)
Class	Aves (Birds)	Ulvophyceae (Ulvophyceae)
Order	Apodiformes (Apodiformes)	Ulvales (Ulvales)
Family	Trochilidae	Ulvaceae
Genus	Aglaiocercus	Ulva
Species	Aglaiocercus kingii	Ulva compressa

Conservation Status

Long-tailed Sylph

LC — Least Concern

Thread Weed

LC — Least Concern

Physical Characteristics

Attribute	Long-tailed Sylph	Thread Weed
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.

Thread Weed

Habitat

Native to Asia and Europe and Oceania, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), Oceania and the Pacific (New Zealand), and South America (Brazil).

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