Barred eagle ray vs Long-tailed Sylph

Aetomylaeus asperrimus compared with Aglaiocercus kingii

Key Differences

• Barred eagle ray is Data Deficient while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Barred eagle ray	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Myliobatiformes (Myliobatiformes)	Apodiformes (Apodiformes)
Family	Myliobatidae	Trochilidae
Genus	Aetomylaeus	Aglaiocercus
Species	Aetomylaeus asperrimus	Aglaiocercus kingii

Evolutionary Relationship

Barred eagle ray and Long-tailed Sylph share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Barred eagle ray

DD — Data Deficient

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Barred eagle ray	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Barred eagle ray

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Barred eagle ray

The Barred eagle ray (Aetomylaeus asperrimus) is a species in the genus Aetomylaeus. Its conservation status is listed as Data Deficient, indicating insufficient data for assessment.

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.