Weißkopf-Seeadler vs Haselkätzchen-Stromabecherling

Haliaeetus leucocephalus compared with Ciboria coryli

Key Differences

Weißkopf-Seeadler is Not Evaluated while Haselkätzchen-Stromabecherling is Least Concern.

Taxonomic Classification

Rank	Weißkopf-Seeadler	Haselkätzchen-Stromabecherling
Kingdom	Animalia (Tier)	Fungi (Pilze)
Phylum	Chordata (Chordatiere)	Ascomycota (Schlauchpilze)
Class	Aves (Vögel)	Leotiomycetes (Leotiomycetes)
Order	Accipitriformes (Greifvögel)	Helotiales (Helotiales)
Family	Accipitridae (Hawks & Eagles)	Sclerotiniaceae
Genus	Haliaeetus (Sea Eagles)	Ciboria
Species	Haliaeetus leucocephalus	Ciboria coryli

Conservation Status

Weißkopf-Seeadler

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Haselkätzchen-Stromabecherling

LC — Least Concern

Physical Characteristics

Attribute	Weißkopf-Seeadler	Haselkätzchen-Stromabecherling
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

Weißkopf-Seeadler

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).

Haselkätzchen-Stromabecherling

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Weißkopf-Seeadler

The national bird of the United States and a symbol of American conservation success, bald eagles have a wingspan of up to 2.4 meters and inhabit forests and wetlands near open water across North America. Powerful aerial predators and scavengers, they specialize in fish but also take waterfowl and carrion. Nearly extinct by the 1960s due to DDT poisoning and hunting, the bald eagle recovered dramatically following pesticide bans and the Endangered Species Act.

Haselkätzchen-Stromabecherling

Ciboria coryli is a saprotrophic cup fungus in the family Sclerotiniaceae, found in temperate Europe. It typically fruits on the fallen catkins and nuts of hazel (Corylus avellana) in moist woodland, hedgerow, and scrub habitats, emerging from sclerotia within decaying plant material. The fruiting bodies are stalked discs, pale to medium brown, and rarely exceed one centimeter in diameter. Like other members of the genus, Ciboria coryli is a specialist on a particular plant substrate, in this case hazel reproductive material, which determines its seasonal and geographic distribution. It is classified as Least Concern, with populations stable in regions where hazel woodland persists. Hazel coppice and mixed deciduous woodland across central and western Europe provide suitable habitat. The species name coryli directly references its host plant genus. Identification from related species requires microscopic examination of spore size and shape, as well as the character of paraphyses and excipular cells. Ciboria coryli contributes to the decomposition of woodland leaf litter and the cycling of nutrients from fallen organic matter back into the soil. As with many small discomycetes, it is under-recorded relative to its actual abundance. Conservation of hazel-rich woodland habitats benefits this species alongside a wide range of other specialist fungi and invertebrates associated with hazel.