Steller's Sea Eagleオオワシ

Haliaeetus pelagicusVU— Vulnerable

Steller's sea eagle is one of the largest and heaviest eagles in the world, breeding along Russia's Kamchatka Peninsula, the Sea of Okhotsk coast, and the lower Amur River, with wintering birds reaching Korea, Japan, and China. It feeds mainly on salmon and other fish, supplemented by waterbirds, small mammals, and carrion. Classified as Vulnerable with a declining population estimated at around 5,000 individuals, it is protected in Japan as a Natural Monument.

Steller's Sea Eagle (reference photo)
Photo: Michael Pinczolits / CC BY 2.0 / Source / cropped

Species Data

Classification
Accipitriformes / Accipitridae Source
Size
Males total length about 88 cm / females about 102 cm; wingspan 220–250 cm
Weight
Males 4.9–6.8 kg / females 6.2–9.5 kg (considered the heaviest living eagle)
Lifespan
Said to live about 30 years in the wild
Diet
Carnivore Mainly fish such as pink salmon, chum salmon, and walleye pollock; also eats birds such as ducks, small to medium mammals, and the carcasses of seals and whales
Distribution
Endemic to northeastern Asia, breeding on Russia's Kamchatka Peninsula, near the Sea of Okhotsk, and the lower Amur River; winter migrants reach Korea, Japan, and China. Source
Sources
ja.wikipedia.org en.wikipedia.org

Did You Know?

  • Among the largest eagles seen in Japan, it was designated a national Natural Monument in 1970 and a National Endangered Species of Wild Fauna and Flora in 1993. Source
  • Steller's sea eagles have 14 tail feathers, more than the 12 typically found in other sea eagles. Source
  • The global population is estimated at around 5,000 individuals and is declining. Source

Where to See This Species

Operating facilities registered on this site: Japan 6

Asahiyama ZooHokkaidoOpened in 1967

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Yokohama Shiritsu Yokohama DoubutsuenKanagawaOpened in 1999

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Sapporoshimaruyama DoubutsuenHokkaidoOpened in 1951

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Ueno ZooTokyoOpened in 1882

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Hamamatsu Zoological GardensShizuokaOpened in 1950

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Fukuoka Zoo & Botanical GardenFukuokaOpened in 1953

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Conservation Story

Conservation Status

Vulnerable (VU)

Sources

ja.wikipedia.org

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FAQ

How big is Steller's sea eagle?
It is considered the heaviest eagle species in the world, with females weighing up to 9.5 kg and a wingspan of 220–250 cm. Source
What does Steller's sea eagle eat?
It feeds mainly on fish such as salmon and pollock, along with waterbirds, small to medium mammals, and carrion including seals and whales. Source
Is Steller's sea eagle endangered?
It is classified as Vulnerable by the IUCN, with a declining global population estimated at around 5,000 individuals. Source
How many operating facilities are registered here?
Operating facilities registered on this site: Japan 6 Source

Books & gear

Source: ja.wikipedia.org en.wikipedia.org