白头海雕 vs 疣鼻天鵝〔赤嘴天鵝〕

Haliaeetus leucocephalus compared with Cygnus olor

Key Differences

• 白头海雕 is Not Evaluated while 疣鼻天鵝〔赤嘴天鵝〕 is Near Threatened.
• 白头海雕 is carnivore while 疣鼻天鵝〔赤嘴天鵝〕 is herbivore.
• 疣鼻天鵝〔赤嘴天鵝〕 is 2.4x heavier than 白头海雕.
• 白头海雕 lives longer (28 years vs 20 years).

Taxonomic Classification

Rank	白头海雕	疣鼻天鵝〔赤嘴天鵝〕
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)	Cygnus
Species	Haliaeetus leucocephalus	Cygnus olor

Evolutionary Relationship

白头海雕 and 疣鼻天鵝〔赤嘴天鵝〕 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 ↑

疣鼻天鵝〔赤嘴天鵝〕

NT — Near Threatened

Population: ~600.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	白头海雕	疣鼻天鵝〔赤嘴天鵝〕
Diet	Carnivore	Herbivore
Average Lifespan	28 years	20 years
Average Length	90 cm	1.5 m
Average Weight	5.0 kg	12.0 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).

疣鼻天鵝〔赤嘴天鵝〕

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 8 distinct biome types.

Range

Widely distributed across Africa (South Africa), Asia (4 countries), Europe (24 countries), North America (Canada, Dominican Republic, United States), Oceania and the Pacific (New Zealand), and South America (Colombia, Peru). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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。

疣鼻天鵝〔赤嘴天鵝〕

大天鹅（Cygnus olor）是全球最常见的天鹅，也是最大的飞禽之一，体重最高可达 15 千克，栖息于欧亚大陆的湖泊、河流和沿海湾，北美和澳大利亚也有广泛引入种群。尽管名字暗示其沉默，但大天鹅会发出嘶嘶声、咕噜声和振翅声。雄鸟极力捍卫领地，有力的翅膀打击足以伤人或令狗溺毙。

Shared Countries

Both species can be found in 8 countries:

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