Pygargue à tête blanche vs ours blanc

Haliaeetus leucocephalus compared with Ursus maritimus

Key Differences

• Pygargue à tête blanche is Not Evaluated while ours blanc is Vulnerable.
• ours blanc is 90.0x heavier than Pygargue à tête blanche.
• Pygargue à tête blanche lives longer (28 years vs 25 years).

Taxonomic Classification

Rank	Pygargue à tête blanche	ours blanc
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (oiseau)	Mammalia (mammifères)
Order	Accipitriformes (Hawks & Eagles)	Carnivora (carnivores)
Family	Accipitridae (Hawks & Eagles)	Ursidae (Bears)
Genus	Haliaeetus (Sea Eagles)	Ursus (Bears)
Species	Haliaeetus leucocephalus	Ursus maritimus

Evolutionary Relationship

Pygargue à tête blanche and ours blanc share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Pygargue à tête blanche

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

ours blanc

VU — Vulnerable

Population: ~26.0K

Trend: Decreasing ↓

Physical Characteristics

Attribute	Pygargue à tête blanche	ours blanc
Diet	Carnivore	Carnivore
Average Lifespan	28 years	25 years
Average Length	90 cm	2.4 m
Average Weight	5.0 kg	450.0 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).

ours blanc

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

ours blanc

The largest land carnivore on Earth, polar bears can exceed 700 kg and are found across Arctic sea ice from Canada to Russia. Highly specialized marine mammals that rely on sea ice to hunt ringed and bearded seals. Excellent swimmers capable of covering vast distances in open water. Listed as Vulnerable, with populations under severe pressure from rapid Arctic sea ice loss due to climate change.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway