Buteo japonicus
The Eastern Buzzard, *Buteo japonicus*, is a medium-sized raptor, often exhibiting significant plumage variability, making it a fascinating subject for identification. Adults typically measure 45-54 cm (18-21 in) in length with a wingspan of 100-130 cm (39-51 in), and weigh between 500-1100g. Characteristic field marks include broad wings, a relatively short tail, and distinct dark carpal patches ('commas') on the underwing, often contrasting with paler underparts and a dark trailing edge to ...
Eastern Buzzards inhabit a variety of open and semi-open landscapes, including woodlands, forest edges, cultivated fields, grasslands, and even suburban areas, ranging from sea level to high mountain elevations.
Eastern Buzzards are opportunistic carnivores, primarily preying on small mammals (especially rodents like voles and mice), small birds, reptiles, amphibians, and large insects; they occasionally take carrion.
Primarily diurnal, Eastern Buzzards spend much of their day perched on vantage points or soaring on thermals, meticulously scanning the ground for prey. Their foraging strategy typically involves a 'sit-and-wait' approach from an elevated perch, followed by a swift dive to capture unsuspecting pr...
The Eastern Buzzard boasts an expansive geographic distribution across East Asia. Its breeding range primarily encompasses Japan (from Hokkaido south to Kyushu), the Korean Peninsula, parts of eastern China, southeastern Siberia, Mongolia, and the Russian Far East. During the autumn, these popula...
Least Concern
- The Eastern Buzzard was only formally recognized as a distinct species from the Common Buzzard (*Buteo buteo*) in 2008, after years of debate among ornithologists. - Their plumage is highly polymorphic, meaning individuals can vary dramatically in color from very pale to very dark, sometimes ev...