Bladder Fern vs Eurasian Sparrowhawk

Cystopteris fragilis compared with Accipiter nisus

Key Differences

• Bladder Fern is Not Evaluated while Eurasian Sparrowhawk is Least Concern.

Taxonomic Classification

Rank	Bladder Fern	Eurasian Sparrowhawk
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Aves (Birds)
Order	Polypodiales (Polypodiales)	Accipitriformes (Hawks & Eagles)
Family	Cystopteridaceae	Accipitridae (Hawks & Eagles)
Genus	Cystopteris	Accipiter
Species	Cystopteris fragilis	Accipiter nisus

Conservation Status

Bladder Fern

NE — Not Evaluated

Eurasian Sparrowhawk

LC — Least Concern

Physical Characteristics

Attribute	Bladder Fern	Eurasian Sparrowhawk
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bladder Fern

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (Canada, United States), and South America (Colombia).

Eurasian Sparrowhawk

Habitat

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

Range

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

Bladder Fern

The Bladder Fern (Cystopteris fragilis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

Eurasian Sparrowhawk

Eurasian Sparrowhawk (Accipiter nisus) 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.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden