ハクトウワシ vs Common Bird'S Nest

Haliaeetus leucocephalus compared with Crucibulum laeve

Key Differences

ハクトウワシ is Not Evaluated while Common Bird'S Nest is Least Concern.

Taxonomic Classification

Rank	ハクトウワシ	Common Bird'S Nest
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)	Agaricales (ハラタケ目)
Family	Accipitridae (Hawks & Eagles)	Nidulariaceae
Genus	Haliaeetus (Sea Eagles)	Crucibulum
Species	Haliaeetus leucocephalus	Crucibulum laeve

Conservation Status

ハクトウワシ

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Common Bird'S Nest

LC — Least Concern

Physical Characteristics

Attribute	ハクトウワシ	Common Bird'S Nest
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).

Common Bird'S Nest

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (Norway, Portugal, Sweden), North America (United States), and South America (Brazil).

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。

Common Bird'S Nest

The common bird's nest (<em>Crucibulum laeve</em>) is a small cup-shaped fungus belonging to the family Nidulariaceae, known for its distinctive nest-like fruiting bodies that contain egg-like spore packages called peridioles. It is classified as Least Concern on the IUCN Red List. The species has been documented in Taiwan, Norway, Portugal, Sweden, the United States, and Brazil, reflecting a wide global distribution. <em>Crucibulum laeve</em> typically grows on decaying wood, forest floors, and decomposing organic material, where it plays a role in breaking down cellulose-rich substrates. The funnel-shaped cups, often pale tan in color, are designed to use splashing raindrops as a dispersal mechanism, propelling the peridioles outward to deposit spores on new substrates. This splash-cup dispersal strategy is a distinctive adaptation shared among bird's nest fungi. Biological traits of this species remain poorly documented in the scientific literature.