American Bald Eagle vs Common Seal

Haliaeetus leucocephalus compared with Phoca vitulina

Key Differences

• American Bald Eagle is Not Evaluated while Common Seal is Near Threatened.
• Common Seal is 16.0x heavier than American Bald Eagle.
• Common Seal lives longer (30 years vs 28 years).

Taxonomic Classification

Rank	American Bald Eagle	Common Seal
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Aves (chim)	Mammalia (lớp Thú)
Order	Accipitriformes (bộ Ưng)	Pinnipedia (Seals & Sea Lions)
Family	Accipitridae (Hawks & Eagles)	Phocidae (True Seals)
Genus	Haliaeetus (Sea Eagles)	Phoca (Harbor Seals)
Species	Haliaeetus leucocephalus	Phoca vitulina

Evolutionary Relationship

American Bald Eagle and Common Seal share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

American Bald Eagle

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Common Seal

NT — Near Threatened

Population: ~500.0K

Trend: Stable →

Physical Characteristics

Attribute	American Bald Eagle	Common Seal
Diet	Carnivore	Carnivore
Average Lifespan	28 years	30 years
Average Length	90 cm	1.7 m
Average Weight	5.0 kg	80.0 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).

Common Seal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Found across Europe (7 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Common Seal

The most widely distributed pinniped, harbor seals inhabit temperate and subarctic coastal waters of both the North Atlantic and North Pacific. Adults reach up to 130 kg and spend roughly equal time at sea hunting fish, squid, and crustaceans and hauling out on beaches or rocks to rest. Their large, expressive eyes are adapted for underwater vision in low light. Harbor seals are a critical food source for orcas, sharks, and polar bears.

Shared Countries

Both species can be found in 5 countries:

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