ハクトウワシ vs Chrome-Footed Bolete

Haliaeetus leucocephalus compared with Harrya chromipes

Taxonomic Classification

Rank	ハクトウワシ	Chrome-Footed Bolete
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Chordata (脊索動物)	Basidiomycota (担子菌門)
Class	Aves (鳥類)	Agaricomycetes (真正担子菌綱)
Order	Accipitriformes (タカ目)	Boletales (イグチ目)
Family	Accipitridae (Hawks & Eagles)	Boletaceae
Genus	Haliaeetus (Sea Eagles)	Harrya
Species	Haliaeetus leucocephalus	Harrya chromipes

Conservation Status

ハクトウワシ

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Chrome-Footed Bolete

NE — Not Evaluated

Physical Characteristics

Attribute	ハクトウワシ	Chrome-Footed Bolete
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

ハクトウワシ

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).

Chrome-Footed Bolete

Habitat

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

Range

Distributed across Taiwan and United States.

ハクトウワシ

アメリカの国鳥であり保全の成功を象徴するハクトウワシは翼開長が最大2.4 mに達し、北米全域の水辺近くの森林や湿地に生息する。強力な空中捕食者兼腐肉食者で魚を主食とするが、水鳥や腐肉も捕食する。DDT汚染と狩猟によって1960年代にほぼ絶滅に瀕したが、農薬の使用禁止と絶滅危惧種法の施行により劇的に回復した。

Chrome-Footed Bolete

The chrome-footed bolete (Boletus chrysenteron) is a species of mushroom in the family Boletaceae, widely distributed in deciduous and mixed forests of Europe and North America. Like other boletes, it produces a fleshy fruiting body with a sponge-like pore surface on the underside of the cap rather than the gills typical of most mushrooms. The cap surface of Boletus chrysenteron is dry, olive-brown to reddish-brown, and frequently develops irregular cracks revealing a reddish layer beneath the cuticle — a characteristic feature that aids identification. The stipe is typically pale above with reddish tints below. The flesh stains blue-green when cut or bruised, a reaction caused by oxidation of pulvinic acid derivatives. This species forms ectomycorrhizal associations with deciduous trees, particularly oaks and beeches, playing an important role in forest nutrient cycling. Boletus chrysenteron is considered edible but is of modest culinary value compared to premium edible boletes such as the porcini. Its flesh is often soft and prone to insect infestation. The species is common throughout its range and has no significant conservation concerns.