ハクトウワシ vs Common oat

Haliaeetus leucocephalus compared with Avena sativa

Taxonomic Classification

Rank	ハクトウワシ	Common oat
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Magnoliophyta (被子植物門)
Class	Aves (鳥類)	Liliopsida (単子葉植物綱)
Order	Accipitriformes (タカ目)	Poales (イネ目)
Family	Accipitridae (Hawks & Eagles)	Poaceae (Grass Family)
Genus	Haliaeetus (Sea Eagles)	Avena
Species	Haliaeetus leucocephalus	Avena sativa

Conservation Status

ハクトウワシ

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Common oat

NE — Not Evaluated

Physical Characteristics

Attribute	ハクトウワシ	Common oat
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 oat

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Widely distributed across Africa (5 countries), Asia (9 countries), Europe (24 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (Australia), and South America (6 countries).

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 oat

<em>Avena sativa</em> is a domesticated annual grass in the family Poaceae, cultivated worldwide as a cereal crop and fodder plant. Originally derived from wild oat ancestors in the Fertile Crescent, it is now grown across all major agricultural regions, including Africa, Asia, Europe, North America, Oceania, and South America. The species typically thrives in cool, temperate climates with moderate rainfall and is planted in grasslands, croplands, and disturbed habitats. It has been a staple food grain for millennia, valued for its nutritional content, including beta-glucan fiber, proteins, and minerals. Common oat typically grows to 60–120 cm in height and produces distinctive drooping panicle inflorescences bearing multiple spikelets. The species is cultivated both for human consumption and as livestock forage. Its conservation status has not been formally evaluated by the IUCN, reflecting its widespread cultivation and absence of extinction risk. Biological traits such as lifespan, length, and weight are not standardized in wildlife databases given its status as a crop species, and dietary characteristics remain poorly documented in ecological terms. It is one of the most economically important cereal grains globally and supports diverse agroecosystems.