Siberian nuthatch

Siberian nuthatch
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Sittidae
Genus:	Sitta
Species:	S. arctica
Binomial name
Sitta arctica Buturlin, 1907
Siberian nuthatch range
Synonyms[2]
Sitta europaea arctica Buturlin, 1907 Arctositta arctica (Buturlin, 1907)

The Siberian nuthatch (Sitta arctica) is a bird species of the family Sittidae. For a long time considered as a subspecies of the Eurasian nuthatch (S. europaea), it was clearly differentiated in 2006 on the basis of morphological and molecular characters. It is on average marginally larger than the Eurasian nuthatch (though with considerable overlap), and also differs in some morphological features such as the shape of its bill, the size of its claws and the colour of its underwing and outer rectrices. Its song has also been described as "distinctly different" from that of the Eurasian nuthatch, though without further clarification.

The Siberian nuthatch inhabits the forests northeast of Lake Baikal, up to the Bering Sea and the Sea of Okhotsk, but not near the coast. It lives in northwestern Siberia, barely exceeding the 105th meridian east in the west. It lives in Daurian larch (Larix gmelinii) stands on flood plains. The Siberian nuthatch has a wide range and its numbers are presumed to be stable, so the International Union for Conservation of Nature considers the bird to be of "least concern".