Alpine Cliff Fern vs American Bald Eagle

Woodsia alpina compared with Haliaeetus leucocephalus

Key Differences

Alpine Cliff Fern is Least Concern while American Bald Eagle is Not Evaluated.

Taxonomic Classification

Rank	Alpine Cliff Fern	American Bald Eagle
Kingdom	Plantae (thực vật)	Animalia (động vật)
Phylum	Tracheophyta	Chordata (động vật có dây sống)
Class	Polypodiopsida (Lớp Dương xỉ)	Aves (chim)
Order	Polypodiales (Bộ Dương xỉ)	Accipitriformes (bộ Ưng)
Family	Woodsiaceae	Accipitridae (Hawks & Eagles)
Genus	Woodsia	Haliaeetus (Sea Eagles)
Species	Woodsia alpina	Haliaeetus leucocephalus

Conservation Status

Alpine Cliff Fern

LC — Least Concern

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Physical Characteristics

Attribute	Alpine Cliff Fern	American Bald Eagle
Diet	—	Carnivore
Average Lifespan	—	28 years
Average Length	—	90 cm
Average Weight	—	5.0 kg

Habitat & Geographic Range

Alpine Cliff Fern

Habitat

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

Range

Distributed across Canada, Iceland, Norway, Sweden, and United States.

American Bald Eagle

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 10 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (8 countries), North America (United States), and South America (Ecuador).

Alpine Cliff Fern

The Alpine Cliff Fern (Woodsia alpina) is a species in the genus Woodsia. It is currently classified as Least Concern on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies. Distributed across Canada, Iceland, Norway, Sweden, and United States.

American Bald Eagle

The national bird of the United States and a symbol of American conservation success, bald eagles have a wingspan of up to 2.4 meters and inhabit forests and wetlands near open water across North America. Powerful aerial predators and scavengers, they specialize in fish but also take waterfowl and carrion. Nearly extinct by the 1960s due to DDT poisoning and hunting, the bald eagle recovered dramatically following pesticide bans and the Endangered Species Act.