未成鳥 © Christoph Moning
成鳥 © Christoph Moning
未成鳥 © Charley Hesse TROPICAL BIRDING
成鳥 © Andres Vasquez Noboa
+ 4
成鳥 © Nick Bonomo
成鳥 © Andres Vasquez Noboa
鳥群 © Christoph Moning

Steller's Sea-Eagle Haliaeetus pelagicus

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辨識

MERLIN 技術支援

An immense eagle with large head and massive orange bill to match. Adult is striking, even from a great distance: rich brown overall, with snow-white tail, belly, and shoulder patches. Juvenile and immatures darker but usually acquire mostly white, wedge-shaped tail in second year. Younger birds can be confused with young White-tailed Eagle, but Steller’s distinguished by larger bill, wedge-shaped tail, and unique wing shape, narrow at the tip, bulging in the middle, then narrowing near the body. Plucks fish from icy seas and follows fishing boats for scraps. Often associates with White-tailed Eagles where prey is abundant.

MERLIN 技術支援