白头海雕 vs Clustered Sedge

Haliaeetus leucocephalus compared with Carex glareosa

Key Differences

白头海雕 is Not Evaluated while Clustered Sedge is Vulnerable.

Taxonomic Classification

Rank	白头海雕	Clustered Sedge
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)	Cyperaceae
Genus	Haliaeetus (Sea Eagles)	Carex
Species	Haliaeetus leucocephalus	Carex glareosa

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Clustered Sedge

VU — Vulnerable

Physical Characteristics

Attribute	白头海雕	Clustered Sedge
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).

Clustered Sedge

Habitat

Inhabits boreal forests and taiga within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Finland, Iceland, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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。

Clustered Sedge

Carex glareosa, the clustered sedge or gravel sedge, is a perennial sedge in the family Cyperaceae distributed across the circumpolar Arctic and subarctic zones of the northern hemisphere, growing in coastal and inland wetlands, salt marshes, brackish meadows, mudflats, gravelly tundra, and low-lying areas subject to periodic flooding. The species forms dense tufts or loose colonies, producing narrow, grass-like leaves and small spikelets characteristic of the genus Carex. C. glareosa is adapted to saline and brackish conditions in coastal habitats, as well as to freshwater wetlands in more continental settings. Like other Arctic sedges, it is an important component of tundra and wetland plant communities that provide habitat and forage for migratory waterfowl, shorebirds, and Arctic mammals. The species is listed as Vulnerable by the IUCN, with concern focused on the impacts of climate change on Arctic and subarctic wetland habitats, where rising temperatures, permafrost thaw, altered hydrology, and increased shrub encroachment threaten specialized wetland plant communities.