November 16, 2017
King of the Air
- as seen by -Jonathan C. Slaght @JonathanSlaght
So large is the Steller’s sea eagle that occasionally, on a frozen bay, one of these birds can be mistaken for the hunched form of an ice fisherman. It is the bulkiest of all eagles, weighing up to twice as much as a bald eagle, and soaring over the coasts of northeast Asia on a seven-foot wingspan. The plumage of a Steller’s sea eagle is an exercise in contrasts: deep blacks cut by lines of crisp white behind an enormous, bright orange bill.
These are salmon eaters, mostly, but they also hunt some of the common bird species in their range, such as gulls and murres. In winter many individuals are drawn south as far as the Sea of Japan, where they seek out concentrations of rotting autumn-run salmon. That’s where I saw this one, along the Avvakumovka River in Primorye, Russia, where it had its pick from thousands of decaying Keta salmon clogging the shallows and pools of that waterway.
Sometimes, Steller’s sea eagles scan the coastal forests for carcasses of deer that succumbed to the rigors of winter or were killed by predators. Occasionally, they get too close to an Amur tiger’s kill, and their bodies are found broken in the snow where the tiger flung them, these kings of the air felled by the kings of the forest.
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