Bahama Swallow vs Long-tailed Sylph

Tachycineta cyaneoviridis compared with Aglaiocercus kingii

Key Differences

• Bahama Swallow is Endangered while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Bahama Swallow	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Passeriformes (Songbirds)	Apodiformes (Apodiformes)
Family	Hirundinidae	Trochilidae
Genus	Tachycineta	Aglaiocercus
Species	Tachycineta cyaneoviridis	Aglaiocercus kingii

Evolutionary Relationship

Bahama Swallow and Long-tailed Sylph share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Bahama Swallow

EN — Endangered

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Bahama Swallow	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bahama Swallow

Habitat

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

Range

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

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Bahama Swallow

The Bahama Swallow (Tachycineta cyaneoviridis) is a species in the genus Tachycineta. It is currently classified as Endangered on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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 2 countries:

🇨🇴 Colombia 🇳🇴 Norway