白头海雕 vs 巨頭鵲鴨

Haliaeetus leucocephalus compared with Bucephala albeola

Taxonomic Classification

Rank	白头海雕	巨頭鵲鴨
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Aves (鳥綱)	Aves (鳥綱)
Order	Accipitriformes (鷹形目)	Anseriformes (雁形目)
Family	Accipitridae (Hawks & Eagles)	Anatidae
Genus	Haliaeetus (Sea Eagles)	Bucephala
Species	Haliaeetus leucocephalus	Bucephala albeola

Evolutionary Relationship

白头海雕 and 巨頭鵲鴨 share a common ancestor at the Class level: Aves. (鳥綱)

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

巨頭鵲鴨

NE — Not Evaluated

Physical Characteristics

Attribute	白头海雕	巨頭鵲鴨
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).

巨頭鵲鴨

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found across Europe (11 countries) and North America (United States).

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。

巨頭鵲鴨

棉头鸭（Bucephala albeola）在IUCN红色名录中被列为未评估（NE）。尚未依照IUCN红色名录标准进行评估，保护状况有待确定。

Shared Countries

Both species can be found in 9 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇵🇱 Poland 🇸🇪 Sweden 🇬🇧 United Kingdom 🇺🇸 United States