Pygargue à tête blanche vs alternée

Haliaeetus leucocephalus compared with Epirrhoe alternata

Key Differences

• Pygargue à tête blanche is Not Evaluated while alternée is Least Concern.

Taxonomic Classification

Rank	Pygargue à tête blanche	alternée
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum	Chordata (Chordates)	Arthropoda (arthropodes)
Class	Aves (oiseau)	Insecta (insecte)
Order	Accipitriformes (Hawks & Eagles)	Lepidoptera (Butterflies & Moths)
Family	Accipitridae (Hawks & Eagles)	Geometridae
Genus	Haliaeetus (Sea Eagles)	Epirrhoe
Species	Haliaeetus leucocephalus	Epirrhoe alternata

Evolutionary Relationship

Pygargue à tête blanche and alternée share a common ancestor at the Kingdom level: Animalia. (animal)

Conservation Status

Pygargue à tête blanche

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

alternée

LC — Least Concern

Physical Characteristics

Attribute	Pygargue à tête blanche	alternée
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

Pygargue à tête blanche

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).

alternée

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (4 countries) and North America (Canada, United States).

Pygargue à tête blanche

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.

alternée

<em>Epirrhoe alternata</em>, commonly known as the common carpet, is a moth species found across Europe, Canada, and the United States. It typically inhabits all terrestrial and freshwater environments, often occurring in woodland edges, gardens, hedgerows, and areas where its larval host plants are abundant. The species is classified as Least Concern on the IUCN Red List, reflecting its broad distribution and generally stable populations. The common carpet belongs to the genus <em>Epirrhoe</em> within the family Geometridae. As a geometer moth, it is characterized by its distinctive wing patterns, which feature alternating light and dark banding that gives rise to its common name. The larvae typically feed on plants in the family Rubiaceae, particularly bedstraws (<em>Galium</em> species), and adults are often observed resting with wings spread flat against vegetation or bark. Biological traits such as average lifespan, wingspan, and body mass of this species remain poorly documented in the scientific literature. The species is a common component of temperate moth communities across its range.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States