白头海雕 vs cloud grass

Haliaeetus leucocephalus compared with Agrostis nebulosa

Taxonomic Classification

Rank	白头海雕	cloud grass
Kingdom	Animalia (动物界)	Plantae (植物)
Phylum	Chordata (脊索动物门)	Magnoliophyta (木兰植物门)
Class	Aves (鳥綱)	Liliopsida (百合纲)
Order	Accipitriformes (鷹形目)	Poales (禾本目)
Family	Accipitridae (Hawks & Eagles)	Poaceae (Grass Family)
Genus	Haliaeetus (Sea Eagles)	Agrostis
Species	Haliaeetus leucocephalus	Agrostis nebulosa

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

cloud grass

NE — Not Evaluated

Physical Characteristics

Attribute	白头海雕	cloud grass
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

白头海雕

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).

cloud grass

Habitat

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

Range

Found across Europe (8 countries).

白头海雕

白头海雕是美国国鸟，也是美国生态保护史上的成功案例，曾因滴滴涕（DDT）的广泛使用而濒临灭绝，经保护措施的实施后种群数量已显著恢复。该物种在IUCN红色名录中被评估为无危（LC），以白色头颈和尾羽与深棕色体羽形成的鲜明对比为主要识别特征。它们主要以鱼类为食，也会捕食哺乳动物和腐肉。

cloud grass

Cloud grass refers to ornamental and native grasses in the genus Agrostis (family Poaceae), particularly Agrostis nebulosa, a delicate annual grass native to the Iberian Peninsula and northwestern Africa that produces large, airy, cloud-like panicles of minute spikelets on extremely fine, hair-like branches. The panicle's ethereal, misty appearance in mass gives the plant its evocative common name. It grows in dry, sandy soils and disturbed ground, completing its life cycle quickly in spring before summer drought conditions. Agrostis nebulosa is widely cultivated as an ornamental grass for cut flower arrangements and dried flower compositions, where its delicate panicles add texture and movement to floral displays. The genus Agrostis, bent grasses, encompasses dozens of perennial and annual species distributed across cool temperate and alpine zones worldwide, including the fine-leaved bent grasses used in golf greens and lawns for their dense, low-growing turf. Many Agrostis species are characteristic of acidic, nutrient-poor soils in heathlands, moorlands, and montane grasslands across Europe and North America.