白头海雕 vs European otter

Haliaeetus leucocephalus compared with Lutra lutra

Key Differences

白头海雕 is Not Evaluated while European otter is Vulnerable.
European otter is 2.0x heavier than 白头海雕.
白头海雕 lives longer (28 years vs 10 years).

Taxonomic Classification

Rank	白头海雕	European otter
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	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Accipitriformes (鷹形目)	Carnivora (食肉目)
Family	Accipitridae (Hawks & Eagles)	Mustelidae (Weasels & Otters)
Genus	Haliaeetus (Sea Eagles)	Lutra (Otters)
Species	Haliaeetus leucocephalus	Lutra lutra

Evolutionary Relationship

白头海雕 and European otter share a common ancestor at the Phylum level: Chordata. (脊索动物门)

查看 Phylum: Chordata

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

European otter

VU — Vulnerable

Trend: Stable →

Physical Characteristics

Attribute	白头海雕	European otter
Diet	Carnivore	Carnivore
Average Lifespan	28 years	10 years
Average Length	90 cm	1.0 m
Average Weight	5.0 kg	10.0 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).

European otter

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (6 countries). 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。

European otter

欧洲水獭（Lutra lutra）是一种纤细的半水生鼬科动物，分布于欧洲和亚洲的清洁河流、溪流和海岸线。欧洲水獭体长可达1.3米，是技术娴熟的捕鱼者，利用敏感的胡须探测猎物的动向。它们需要鱼类丰富的清洁水域，是淡水生态系统健康状况的指示物种。曾因狩猎和污染在西欧几近灭绝，随着水质改善，种群数量已显著恢复。