Distribution

The Siberian Nuthatch is largely resident within its central and northeastern Siberia (politically, the Russian Far East and eastern Siberia) range. It occurs northwest to circa 105–106°E and 65–66^oN in the upper reaches of the Nizhnyaya Tunguska River and Vilyuy River and southwest to circa 105–106°E and 57–58^oN in the upper reaches of the Lena River; the eastern edge of its range includes the lower Anadyr River Valley (not quite reaching the Gulf of Anadyr) at circa 175^oE and 67^oN, the northwestern Koryak Mountains and the upper Penzhina River at circa 166^oE and 62^oN (35 Portenko, L. A. (1939). Fauna of the Anadyr Land: Birds. Part 1 [In Russian]. Glavesvmorput Press, Leningrad, USSR. Close , 36 Vaurie, C. (1959). The Birds of the Palearctic Fauna: A Systematic Reference. Order Passeriformes. H. F. & G. Witherby, London, UK. Close , 34 Kistchinski, A. A. and E. G. Lobkov (1979). Spatial relationships between some bird sub-species in the Beringian forest-tundra. Moskovskoe Obschestvo I Spytatelei Prirody. Otdel Biologicheskii, Biulleten, Novaia Seriia 5:11–23. Close , 37 Kistchinski, A.A. (1980). Birds of Koryak Highlands. Nauka, Moscow. Close , 38 Kistchinski, A. A. (1988a). Avifauna of North-East Asia: history and modern status. Moscow. [In Russian.]: Nauka Publ. Close , 7 Harrap, S., and D. Quinn (1996). Tits, Nuthatches & Treecreepers. Christopher Helm, London, UK. Close ). The northernmost portion of its range is in the Yana River basin, where it breeds north to 68^oN (39 Vorobyev, K. A. (1963). The Birds of Yakutia. Moscow Academic Press, Moscow, Russia. Close ). During eruptive autumn movements, it is known to wander as far west as the Yenisei Valley at circa 91-92^oE (40 Bershitskaya, T. V. (2002). Physical and geographical specifics of distribution and biology of the tits and nuthatches of Russia. In Study of Biodiversity on the Yenisei Ecological Transect, Animals (D. A. Shakhin, and E. V. Rogacheva, Editors), Moscow, Russia. pp. 308–325. Close ).

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