Silver-throated Bushtit

The silver-throated bushtit, Aegithalos glaucogularis, is a small, active, long-tailed passerine formerly included in the long-tailed tit. Plumage and genetic differences support full-species treatment. Gould's 1855 publication established the name, meaning glaucous-throated. Two subspecies are recognized: nominate glaucogularis around the Yangtze basin and northern vinaceus around the Yellow River basin and adjacent uplands (IOC World Bird List; general species account).

Its documented range lies in temperate forests across central and eastern China, with extensions into northern, western and southwestern provinces. The opened sources do not include Korea, so a Korean record requires verification as a vagrant or historical identification. Diet and breeding details are not transferred from long-tailed tit. Any observation should be documented carefully because small Aegithalos are mobile and superficially similar (Päckert, Martens and Sun; general species account).