Rizz Carlton 29 Nov 2025 Subspecies from eastern China, Korean Peninsula, and Kyushu, wintering in southeastern China, Borneo, and Sulawesi. This subspecies notably have greyish head cap and back.
Subspecies from eastern China, Korean Peninsula, and Kyushu, wintering in southeastern China, Borneo, and Sulawesi. This subspecies notably have greyish head cap and back.