Double-crested Cormorant vs Long-tailed Sylph

Phalacrocorax auritus compared with Aglaiocercus kingii

Taxonomic Classification

Rank	Double-crested Cormorant	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Suliformes (Suliformes)	Apodiformes (Apodiformes)
Family	Phalacrocoracidae	Trochilidae
Genus	Phalacrocorax	Aglaiocercus
Species	Phalacrocorax auritus	Aglaiocercus kingii

Evolutionary Relationship

Double-crested Cormorant and Long-tailed Sylph share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Double-crested Cormorant

LC — Least Concern

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Double-crested Cormorant	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Double-crested Cormorant

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Colombia).

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Double-crested Cormorant

Double-crested Cormorant (Phalacrocorax auritus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

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