白腰燕鷗 vs 白头海雕

Onychoprion aleuticus compared with Haliaeetus leucocephalus

Key Differences

• 白腰燕鷗 is Vulnerable while 白头海雕 is Not Evaluated.

Taxonomic Classification

Rank	白腰燕鷗	白头海雕
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	Charadriiformes (鸻形目)	Accipitriformes (鷹形目)
Family	Laridae	Accipitridae (Hawks & Eagles)
Genus	Onychoprion	Haliaeetus (Sea Eagles)
Species	Onychoprion aleuticus	Haliaeetus leucocephalus

Evolutionary Relationship

白腰燕鷗 and 白头海雕 share a common ancestor at the Class level: Aves. (鳥綱)

Conservation Status

白腰燕鷗

VU — Vulnerable

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Physical Characteristics

Attribute	白腰燕鷗	白头海雕
Diet	—	Carnivore
Average Lifespan	—	28 years
Average Length	—	90 cm
Average Weight	—	5.0 kg

Habitat & Geographic Range

白腰燕鷗

Habitat

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

Range

Distributed across Norway and Taiwan. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its 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).

白腰燕鷗

The Aleutian Tern (Onychoprion aleuticus) is a species in the genus Onychoprion. It is currently classified as Vulnerable on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway