B. H. Hodgson: Mr Blyth's report for December meeting, 1842, with addenda subsequently appended. The journal of the Asiatic Society of Bengal. Band 12, 1843, S. 925–1011. Online, S. 938
doi.org
Eric Pasquet, F. Keith Barker, Jochen Martens, Annie Tillier, Corinne Cruaud, Alice Cibois: Evolution within the nuthatches (Sittidae: Aves, Passeriformes): molecular phylogeny, biogeography, and ecological perspectives. In: J Ornithol, Band 155, 2014, S. 755–765, doi:10.1007/s10336-014-1063-7(PDF).
S. Harrap (2020). Beautiful Nuthatch (Sitta formosa), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. doi:10.2173/bow.beanut1.01
gvsu.edu
scholarworks.gvsu.edu
Jill C. Witt: Predicting Distribution, Habitat Suitability and the Potential Loss of Habitat for Sitta formosa, The Beautiful Nuthatch. Master thesis, Grand Valley State University, April 2006 (PDF).
Shaily Menon, Zafur-Ul Islam, Jorge Soberon, A. Townsend Peterson: Preliminary Analysis of the Ecology and Geography of the Asian Nuthatches (Aves: Sittidae). In: The Wilson Journal of Ornithology, Band 120, Nr. 4, 2008, S. 692–699 (PDF).
Shaily Menon, M. Zafur-ul Islam, A. Townsend Peterson: Projected climate change effects on nuthatch distribution and diversity across Asia. In: The Raffles Bulletin of Zoology, Band 57, Nr. 2, August 2009, S. 569–575, (PDF).
Eric Pasquet, F. Keith Barker, Jochen Martens, Annie Tillier, Corinne Cruaud, Alice Cibois: Evolution within the nuthatches (Sittidae: Aves, Passeriformes): molecular phylogeny, biogeography, and ecological perspectives. In: J Ornithol, Band 155, 2014, S. 755–765, doi:10.1007/s10336-014-1063-7(PDF).
threatenedtaxa.org
Bhoj Kumar Acharya, Lalitha Vijayan: Status and distribution of endemic and threatened birds of the Eastern Himalaya in Sikkim, India. In: JoTT Communication, Band 2, Nr. 2, Februar 2010, S. 685–689 (PDF).