brown hydra vs Long-tailed Sylph

Hydra oligactis compared with Aglaiocercus kingii

Key Differences

• brown hydra is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	brown hydra	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Cnidaria (Cnidarians)	Chordata (Chordates)
Class	Hydrozoa (Hydrozoa)	Aves (Birds)
Order	Anthoathecata (Anthoathecata)	Apodiformes (Apodiformes)
Family	Hydridae	Trochilidae
Genus	Hydra	Aglaiocercus
Species	Hydra oligactis	Aglaiocercus kingii

Evolutionary Relationship

brown hydra and Long-tailed Sylph share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

brown hydra

NE — Not Evaluated

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	brown hydra	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

brown hydra

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

brown hydra

The Brown Hydra (Hydra oligactis) is a species in the genus Hydra. Native to Europe, inhabiting ecosystems characteristic of the region. Distributed across Denmark, Norway, and Sweden. As a member of the Hydra genus, this species contributes to biodiversity in its native 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway