白头海雕 vs cockscomb sainfoin

Haliaeetus leucocephalus compared with Onobrychis caput-galli

Taxonomic Classification

Rank	白头海雕	cockscomb sainfoin
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)	Fabales (豆目)
Family	Accipitridae (Hawks & Eagles)	Fabaceae
Genus	Haliaeetus (Sea Eagles)	Onobrychis
Species	Haliaeetus leucocephalus	Onobrychis caput-galli

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

cockscomb sainfoin

NE — Not Evaluated

Physical Characteristics

Attribute	白头海雕	cockscomb sainfoin
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).

cockscomb sainfoin

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom.

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。

cockscomb sainfoin

Cockscomb sainfoin (Onobrychis caput-galli) is a slender, annual or biennial legume in the family Fabaceae, native to dry, rocky grasslands, field margins, and garrigue scrub of western Europe, primarily in Belgium, France, the Netherlands, and the United Kingdom, extending into the Mediterranean basin. Growing to 20–50 centimetres, the plant has pinnately compound leaves and produces loose racemes of small pink to mauve pea flowers in late spring and early summer. The distinctive winged, helmet-shaped pods — resembling a cock's head or comb — give the species both its common and scientific names (caput-galli meaning cock's head in Latin). Unlike the closely related common sainfoin (Onobrychis viciifolia), this species does not spread by creeping rhizomes and is less commonly used in agriculture, though it grows in similar calcareous, well-drained soil conditions. The plant is associated with dry chalk and limestone grasslands, a habitat under significant pressure from agricultural intensification, scrub encroachment, and development across much of its European range. Pollination is primarily by bees attracted to the nectar-rich flowers. Onobrychis caput-galli is Not Evaluated on the IUCN Red List at global scale, though it may be considered locally rare or declining in parts of its northwestern European range where appropriate grassland habitats have diminished substantially over the past century.