pigargo-americano vs Braun'S Holly Fern

Haliaeetus leucocephalus compared with Polystichum braunii

Key Differences

• pigargo-americano is Not Evaluated while Braun'S Holly Fern is Critically Endangered.

Taxonomic Classification

Rank	pigargo-americano	Braun'S Holly Fern
Kingdom	Animalia (Animals)	Plantae (plantas)
Phylum	Chordata (cordados)	Tracheophyta
Class	Aves (ave)	Polypodiopsida (Polypodiopsida)
Order	Accipitriformes (Hawks & Eagles)	Polypodiales (Polypodiales)
Family	Accipitridae (Hawks & Eagles)	Dryopteridaceae
Genus	Haliaeetus (Sea Eagles)	Polystichum
Species	Haliaeetus leucocephalus	Polystichum braunii

Conservation Status

pigargo-americano

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Braun'S Holly Fern

CR — Critically Endangered

Physical Characteristics

Attribute	pigargo-americano	Braun'S Holly Fern
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

pigargo-americano

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).

Braun'S Holly Fern

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (4 countries) and North America (Canada, United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

pigargo-americano

A ave nacional dos Estados Unidos e símbolo do sucesso conservacionista americano, a águia-careca tem uma envergadura de até 2,4 metros e habita florestas e zonas húmidas próximas de águas abertas em toda a América do Norte. Quase extinta na década de 1960 devido ao envenenamento por DDT e à caça, recuperou de forma notável após as proibições de pesticidas e a Lei das Espécies em Perigo.

Braun'S Holly Fern

The Braun'S Holly Fern (Polystichum braunii) is a species in the genus Polystichum. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and

Shared Countries

Both species can be found in 5 countries:

🇩🇰 Denmark 🇫🇷 France 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States