ハクトウワシ vs Coastal Prickly-pear

Haliaeetus leucocephalus compared with Opuntia littoralis

Key Differences

ハクトウワシ is Not Evaluated while Coastal Prickly-pear is Least Concern.

Taxonomic Classification

Rank	ハクトウワシ	Coastal Prickly-pear
Kingdom	Animalia (動物)	Plantae (植物)
Phylum	Chordata (脊索動物)	Magnoliophyta (被子植物門)
Class	Aves (鳥類)	Magnoliopsida (モクレン綱)
Order	Accipitriformes (タカ目)	Caryophyllales (ナデシコ目)
Family	Accipitridae (Hawks & Eagles)	Cactaceae
Genus	Haliaeetus (Sea Eagles)	Opuntia
Species	Haliaeetus leucocephalus	Opuntia littoralis

Conservation Status

ハクトウワシ

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Coastal Prickly-pear

LC — Least Concern

Physical Characteristics

Attribute	ハクトウワシ	Coastal Prickly-pear
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).

Coastal Prickly-pear

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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。

Coastal Prickly-pear

Coastal prickly pear (Opuntia littoralis) is a succulent cactus in the family Cactaceae, native to the coastal sage scrub and chaparral communities of California and the northern Baja California Peninsula in Mexico. It grows on sandy dunes, rocky bluffs, and coastal slopes, often within metres of the Pacific Ocean, tolerating salt spray, summer drought, and thin, nutrient-poor soils. Like other Opuntia species, it forms flat, jointed pads armed with clusters of sharp spines and yellow glochids. Showy yellow flowers bloom in spring and early summer, producing red or purple edible fruits called tunas. These fruits are consumed by coyotes, birds, and other wildlife, making the species an important food source in coastal scrub ecosystems. The plant also provides cover and nesting sites for small reptiles and invertebrates. Coastal prickly pear is assessed as Least Concern by the IUCN. However, urban development, habitat fragmentation, and invasive plant competition threaten local populations. The species is ecologically intertwined with the highly biodiverse and endangered California coastal sage scrub biome.