Белоголовый орлан vs Тонкоклювая кайра

Haliaeetus leucocephalus compared with Uria aalge

Key Differences

• Белоголовый орлан is Not Evaluated while Тонкоклювая кайра is Critically Endangered.

Taxonomic Classification

Rank	Белоголовый орлан	Тонкоклювая кайра
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Aves (птицы)	Aves (птицы)
Order	Accipitriformes (ястребообразные)	Charadriiformes (ржанкообразные)
Family	Accipitridae (Hawks & Eagles)	Alcidae
Genus	Haliaeetus (Sea Eagles)	Uria
Species	Haliaeetus leucocephalus	Uria aalge

Evolutionary Relationship

Белоголовый орлан and Тонкоклювая кайра share a common ancestor at the Class level: Aves. (птицы)

Conservation Status

Белоголовый орлан

NE — Not Evaluated

Population: ~316.7K

Trend: Increasing ↑

Тонкоклювая кайра

CR — Critically Endangered

Physical Characteristics

Attribute	Белоголовый орлан	Тонкоклювая кайра
Diet	Carnivore	—
Average Lifespan	28 years	—
Average Length	90 cm	—
Average Weight	5.0 kg	—

Habitat & Geographic Range

Белоголовый орлан

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).

Тонкоклювая кайра

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Белоголовый орлан

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.

Тонкоклювая кайра

<em>Uria aalge</em>, the common murre or common guillemot, is a seabird in the family Alcidae found across the North Atlantic and North Pacific Oceans. This colonial cliff-nesting bird typically breeds on rocky coastal ledges and sea stacks, often in dense aggregations that may number in the thousands. <em>Uria aalge</em> is a highly capable diver, using its wings to propel itself underwater in pursuit of fish, sand eels, and invertebrates. It is found in coastal and offshore marine waters during the non-breeding season, ranging across the northern seas. Recorded occurrence countries include Belgium, Denmark, Norway, Sweden, and the United States. Despite its wide distribution and historically large numbers, the common murre is currently assessed as Critically Endangered in certain regional contexts, with populations threatened by oil spills, bycatch in fishing nets, food web disruptions linked to climate change, and disturbance at breeding colonies. Biological traits such as lifespan, body size, and diet remain poorly documented at the population level for this species across its full range, though it is known to be a piscivore. The species is a key indicator of marine ecosystem health and a focus of ongoing seabird conservation efforts.

Shared Countries

Both species can be found in 5 countries:

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