Silver-throated Bushtit Aegithalos glaucogularis is a Chinese endemic, with glaucogularis from Jiangsu, Shanghai, and Zhejiang to Red Basin, Sichuan and southern Shaanxi; and vinaceus from northwest Yunnan, central Sichuan, and Qinghai to Liaoning and Shandong. Resident, in Yunnan to 3000 m (9,840 ft.), lower in winter. HABITAT & BEHAVIOR Broadleaved and mixed forest; also parks and gardens with trees, even in large urban areas. Gregarious; usually in busy flocks, sometimes with other species. Makes domed nest camouflaged with flakes of lichen. ID & COMPARISON Small, fluffy bushtit with tiny bill and long tail. Head and underparts buffy, grading to pinkish around vent. Broad black lateral crown-stripes separated by whitish median crown-stripe; cinnamon forehead; black bib. Mantle and rump grey (sometimes with pinkish tinge), wings black with greyish-brown tertials and secondaries; black tail edged white. Juvenile has brownish head sides and orange-pink throat and underparts tinged yellow. Adult Long-tailed Tit A. caudatus has completely white head and white underparts. BARE PARTS Bill, feet black. VOICE Tuneless, explosive chirr and high-pitched whistles. Busy flocks constantly call to one another; birds separated from flock call particularly loudly. — Craig Brelsford
Daniel Bengtsson served as chief ornithological consultant for Craig Brelsford’s Photographic Field Guide to the Birds of China, from which this species description is drawn.