Eurasian Thick-knee vs Long-tailed Sylph

Burhinus oedicnemus compared with Aglaiocercus kingii

Key Differences

• Eurasian Thick-knee is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Eurasian Thick-knee	Long-tailed Sylph
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Charadriiformes (Charadriiformes)	Apodiformes (Apodiformes)
Family	Burhinidae	Trochilidae
Genus	Burhinus	Aglaiocercus
Species	Burhinus oedicnemus	Aglaiocercus kingii

Evolutionary Relationship

Eurasian Thick-knee and Long-tailed Sylph share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Eurasian Thick-knee

NE — Not Evaluated

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Eurasian Thick-knee	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eurasian Thick-knee

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Ukraine.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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