Zoologische Mededelingen, 80 (December 2006)E.C. Dickinson: Systematic notes on Asian birds. 62. A preliminary review of the Sittidae
Taxonomy at and below species level2

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Sitta solangiae (Delacour & Jabouille, 1930)

Cheng et al. (1964) described chiengfengensis from Hainan as a race of Sitta frontalis , including a colour plate in which they showed the bill as yellow. Cheng (1976, 1987) sustained this view but, subsequent to the comments of Mees (1986), (Cheng, 1994) removed it to solangiae.