白头海雕 vs Compact Swan-neck Moss

Haliaeetus leucocephalus compared with Campylopus brevipilus

Key Differences

白头海雕 is Not Evaluated while Compact Swan-neck Moss is Vulnerable.

Taxonomic Classification

Rank	白头海雕	Compact Swan-neck Moss
Kingdom	Animalia (动物界)	Plantae (植物)
Phylum	Chordata (脊索动物门)	Bryophyta
Class	Aves (鳥綱)	Bryopsida (真藓纲)
Order	Accipitriformes (鷹形目)	Dicranales (曲尾藓目)
Family	Accipitridae (Hawks & Eagles)	Leucobryaceae
Genus	Haliaeetus (Sea Eagles)	Campylopus
Species	Haliaeetus leucocephalus	Campylopus brevipilus

Conservation Status

白头海雕

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Compact Swan-neck Moss

VU — Vulnerable

Physical Characteristics

Attribute	白头海雕	Compact Swan-neck Moss
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).

Compact Swan-neck Moss

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. 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。

Compact Swan-neck Moss

<em>Campylopus brevipilus</em>, compact swan neck moss, is a small acrocarpous moss in the family Dicranaceae found in western Europe, with confirmed occurrences in Belgium, Denmark, Norway, Portugal, and Sweden. Like other members of the genus Campylopus, it is characterised by distinctive narrow leaves with a strong costa that typically extends into a hair point, giving the shoots a bristly appearance when dry. This species inhabits wet heathlands, blanket bog margins, and moist acidic sandy or peaty substrates, often growing in open gaps among heather and other dwarf shrubs. It is particularly associated with the Atlantic heathland zone of western Europe, a globally threatened habitat type that has declined dramatically over the past century due to agricultural intensification, afforestation, and the suppression of traditional heathland management practices such as burning and grazing. The IUCN classifies compact swan neck moss as Vulnerable, reflecting its restricted habitat associations and ongoing heathland loss across its European range. The species forms distinctive dense cushions or mats contributing to bryophyte diversity in oligotrophic heathland communities. Biological traits including growth rates, spore dispersal ecology, and precise morphological dimensions remain poorly documented in formal scientific literature. Conservation of this species depends on the active management and restoration of Atlantic heathland across its range in northwestern Europe and the Iberian Peninsula.