白头海雕 vs Common asparagus fern

Haliaeetus leucocephalus compared with Asparagus setaceus

Taxonomic Classification

Rank	白头海雕	Common asparagus fern
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)	Asparagales (天门冬目)
Family	Accipitridae (Hawks & Eagles)	Asparagaceae
Genus	Haliaeetus (Sea Eagles)	Asparagus
Species	Haliaeetus leucocephalus	Asparagus setaceus

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Common asparagus fern

NE — Not Evaluated

Physical Characteristics

Attribute	白头海雕	Common asparagus fern
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).

Common asparagus fern

Habitat

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

Range

Widely distributed across Africa (Algeria, Seychelles), Asia (4 countries), Europe (5 countries), North America (Cuba, Dominican Republic, United States), Oceania and the Pacific (4 countries), and South America (4 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。

Common asparagus fern

<em>Asparagus setaceus</em>, commonly known as Common Asparagus Fern or Lace Fern, is a climbing or sprawling perennial plant in the family Asparagaceae. Despite its common name, it is not a true fern but a flowering plant with feathery, fern-like cladodes that give it a delicate, lacy appearance. This species has not been formally evaluated by the IUCN and is widely distributed across Africa, Asia, Europe, North America, Oceania, and South America. Native to southern Africa, it has been widely introduced globally through horticulture and can become invasive in some regions. Common Asparagus Fern typically grows in a range of habitats including grasslands, wetland margins, and forest edges, often using its small hooks to climb over other vegetation. Small white or pinkish flowers are followed by dark berries that attract birds, facilitating seed dispersal. It is valued as an ornamental plant for its feathery foliage and is commonly used in floral arrangements. Biological traits of this species remain poorly documented in the scientific literature.