Brittle Bladderfern vs Long-tailed Sylph

Cystopteris tenuis compared with Aglaiocercus kingii

Key Differences

• Brittle Bladderfern is Not Evaluated while Long-tailed Sylph is Least Concern.

Taxonomic Classification

Rank	Brittle Bladderfern	Long-tailed Sylph
Kingdom	Plantae (bitki)	Animalia (hayvan)
Phylum	Tracheophyta	Chordata (Kordalılar)
Class	Polypodiopsida (Polypodiopsida)	Aves (kuş)
Order	Polypodiales (Polypodiales)	Apodiformes (Ebabiller)
Family	Cystopteridaceae	Trochilidae
Genus	Cystopteris	Aglaiocercus
Species	Cystopteris tenuis	Aglaiocercus kingii

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

Long-tailed Sylph

LC — Least Concern

Physical Characteristics

Attribute	Brittle Bladderfern	Long-tailed Sylph
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittle Bladderfern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Canada and United States.

Long-tailed Sylph

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

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.