Family Nuthatches (Sittidae)

Least Concern

Siberian Nuthatch (Sitta arctica)


Taxonomy

French: Sittelle de Sibérie German: Sibirienkleiber Spanish: Trepador siberiano
Other common names: Taiga Nuthatch
Taxonomy:

Sitta arctica

Buturlin

, 1907,

Verkhoyansk (lat. 67½° N [long.133°23’ E]), eastern Siberia

.

Until recently considered conspecific with S. europaea, but differs in multiple characters and may in fact be sympatric (or otherwise parapatric) with S. e. baicalensis; published data on morphometrics include improbably small standard deviations#R (such that its longer wing and shorter hind toe emerge as exceptional differences, total score 8), but a practised estimation of mensural values suggests present species may be scored on following differences: longer wing, tail, bill and hind claw (allow 2); shorter tarsus and hind toe and narrower bill (allow 2); shorter, narrower black eyestripe vs all other subspecies (1); plumbeous-grey vs whitish-grey underwing-coverts (2); considerably more white in outer two rectrices (2); various other structural and plumage features, latter including lack of sexual dimorphism (ns); a reputedly “sharply” different voice (ns)#R; and (at least) parapatric distribution (3). Moreover, molecular analysis places present species as sister to S. europaea#R. Monotypic.

What do (1) and (2) mean? Learn more about the scoring system.
Distribution:

C & NE Siberia from Yenisey Basin and Yakutia (from c. 105–106° E) E to Anadyrland, upper R Penzhina and NW Koryak Highlands.

Descriptive notes

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Recommended citation

del Hoyo, J. & Collar, N. (2019). Siberian Nuthatch (Sitta arctica). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/1343987 on 24 January 2019).