Long-tailed Sylph vs Mountain Toad

Aglaiocercus kingii compared with Incilius cavifrons

Key Differences

• Long-tailed Sylph is Least Concern while Mountain Toad is Endangered.

Taxonomic Classification

Rank	Long-tailed Sylph	Mountain Toad
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Amphibia (Amphibians)
Order	Apodiformes (Apodiformes)	Anura (Frogs & Toads)
Family	Trochilidae	Bufonidae
Genus	Aglaiocercus	Incilius
Species	Aglaiocercus kingii	Incilius cavifrons

Evolutionary Relationship

Long-tailed Sylph and Mountain Toad share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Long-tailed Sylph

LC — Least Concern

Mountain Toad

EN — Endangered

Physical Characteristics

Attribute	Long-tailed Sylph	Mountain Toad
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Mountain Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Mexico. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.