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- Certhia discolor
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2013. The eBird/Clements checklist of birds of the world: Version 6.8., with updates to August 2013. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- BirdForum Opus contributors. (2023) Sikkim Treecreeper. In: BirdForum, the forum for wild birds and birding. Retrieved 5 December 2023 from https://www.birdforum.net/opus/Sikkim_Treecreeper