American Bald Eagle vs

Haliaeetus leucocephalus compared with Clavariadelphus helveticus

Taxonomic Classification

Rank	American Bald Eagle
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Aves (Birds)	Agaricomycetes (Mushrooms)
Order	Accipitriformes (Hawks & Eagles)	Gomphales (Gomphales)
Family	Accipitridae (Hawks & Eagles)	Clavariadelphaceae
Genus	Haliaeetus (Sea Eagles)	Clavariadelphus
Species	Haliaeetus leucocephalus	Clavariadelphus helveticus

Conservation Status

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

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).

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Clavariadelphus helveticus is a club fungus in the family Gomphaceae, distinguished by its simple, unbranched fruiting bodies that emerge singly or in small clusters from forest soils. The genus Clavariadelphus comprises robust, fleshy, clavate fungi with smooth to slightly wrinkled surfaces, typically growing in association with coniferous or mixed forest trees through ectomycorrhizal relationships. Clavariadelphus helveticus in particular is associated with montane forests of central Europe, particularly the Alps and adjacent mountain ranges where it was first described. The fruiting bodies are generally pale buff to ochre or pinkish-buff, broadening toward the apex and tapering toward the base, reaching several centimeters in height. The flesh is firm and white, lacking the distinctive bitter taste of some related species. Spore dispersal occurs from the smooth to slightly roughened surface of the club. The species fruits in late summer to autumn, typically after periods of rainfall. Ectomycorrhizal club fungi contribute to forest nutrient cycling by facilitating mineral and water uptake in tree roots. Population dynamics of Clavariadelphus species are sensitive to forest management practices, soil disturbance, and climate-driven shifts in tree community composition. The conservation status of Clavariadelphus helveticus has not been formally assessed globally, though club fungi as a group are considered indicators of old-growth forest quality in European red-list assessments.