白头海雕 vs Bastard Scotch Thistle

Haliaeetus leucocephalus compared with Carduus nutans

Key Differences

• 白头海雕 is Not Evaluated while Bastard Scotch Thistle is Near Threatened.

Taxonomic Classification

Rank	白头海雕	Bastard Scotch Thistle
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)	Magnoliopsida (木兰纲)
Order	Accipitriformes (鷹形目)	Asterales (菊目)
Family	Accipitridae (Hawks & Eagles)	Asteraceae (Daisy Family)
Genus	Haliaeetus (Sea Eagles)	Carduus
Species	Haliaeetus leucocephalus	Carduus nutans

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Bastard Scotch Thistle

NT — Near Threatened

Physical Characteristics

Attribute	白头海雕	Bastard Scotch Thistle
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).

Bastard Scotch Thistle

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 6 distinct biome types spanning the Australasia and Neotropic and Oceanian realms.

Range

Widely distributed across Africa (South Africa), Asia (India), Europe (8 countries), North America (Canada, Mexico, United States), Oceania and the Pacific (New Zealand), and South America (Argentina, Brazil, Chile). 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。

Bastard Scotch Thistle

The Bastard Scotch Thistle (Carduus nutans) is a species in the genus Carduus. It is currently classified as Near Threatened on the IUCN Red List. Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests, among 6 distinct biome types spanning the Australasia and Neotropic and Oceanian realms.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇵🇱 Poland 🇸🇪 Sweden 🇺🇸 United States