Spellman, Garth M (26 november 2007). ”Phylogeography of the white-breasted nuthatch (Sitta carolinensis): diversification
in North American pine and oak woodlands”. Molecular Ecology "16" (8): ss. 1729–1740. doi:10.1111/j.1365-294X.2007.03237.x.
Fujita, M; K. Kawakami; S. Moriguchi & H. Higuchi (26 november 2008). ”Locomotion of the Eurasian nuthatch on vertical and horizontal substrates”. Journal of Zoology "274" (4): ss. 357–366. doi:10.1111/j.1469-7998.2007.00395.x.