Long-tailed Sylph vs rough corn bedstraw, corn cleavers

Aglaiocercus kingii compared with Galium tricornutum

Key Differences

Long-tailed Sylph is Least Concern while rough corn bedstraw, corn cleavers is Critically Endangered.

Taxonomic Classification

Rank	Long-tailed Sylph	rough corn bedstraw, corn cleavers
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Aves (Birds)	Magnoliopsida (Dicots)
Order	Apodiformes (Apodiformes)	Gentianales (Gentianales)
Family	Trochilidae	Rubiaceae
Genus	Aglaiocercus	Galium
Species	Aglaiocercus kingii	Galium tricornutum

Conservation Status

Long-tailed Sylph

LC — Least Concern

rough corn bedstraw, corn cleavers

CR — Critically Endangered

Physical Characteristics

Attribute	Long-tailed Sylph	rough corn bedstraw, corn cleavers
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 corn bedstraw, corn cleavers

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and temperate broadleaf and mixed forests, among 12 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan, Qatar), Europe (18 countries), North America (Canada, United States), Oceania and the Pacific (Australia), and South America (Brazil, Chile). Currently classified as Critically 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.