American Bald Eagle vs Coastal Brown

Haliaeetus leucocephalus compared with Cassionympha perissinottoi

Key Differences

• American Bald Eagle is Not Evaluated while Coastal Brown is Least Concern.

Taxonomic Classification

Rank	American Bald Eagle	Coastal Brown
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Accipitriformes (Hawks & Eagles)	Lepidoptera (Butterflies & Moths)
Family	Accipitridae (Hawks & Eagles)	Nymphalidae (Brush-footed Butterflies)
Genus	Haliaeetus (Sea Eagles)	Cassionympha
Species	Haliaeetus leucocephalus	Cassionympha perissinottoi

Evolutionary Relationship

American Bald Eagle and Coastal Brown share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Coastal Brown

LC — Least Concern

Physical Characteristics

Attribute	American Bald Eagle	Coastal Brown
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

American Bald Eagle

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).

Coastal Brown

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

American Bald Eagle

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.

Coastal Brown

Cassionympha perissinottoi, the coastal brown, is a butterfly in the family Nymphalidae, subfamily Satyrinae, endemic to the coastal regions of South Africa. Satyrines, commonly called browns or ringlets, are typically medium-sized butterflies with cryptic brown and orange wing patterns that blend effectively with grass and dead vegetation in their grassland and woodland edge habitats. Cassionympha perissinottoi inhabits coastal grassland, dune thicket margins, and moist grassy areas along the eastern South African coast where suitable grass species, which serve as larval host plants, are available. The genus Cassionympha is endemic to Africa and comprises a small number of related species adapted to grassland and savanna habitats. Like many satyrid butterflies, the larvae feed on grasses and the adults feed on rotting fruit, dung, or take moisture from wet soil rather than flower nectar. The species is classified as Least Concern by the IUCN, though coastal grassland habitats in South Africa have been significantly reduced through urban development, plantation forestry with invasive pines and eucalypts, and coastal resort development along the KwaZulu-Natal shoreline.