Maitland, on Hunter River, New South Wales, Australia.
Closely related to N. borealis, with which formerly considered conspecific, but differs in smaller size, expressed particularly as shorter bill and shorter wing (wing effect size −3.73; score 2); longer tarsus (effect size 2.96; score 2); paler (buffy-white vs cinnamon-buff; subscore 1) and unmarked (vs always with some markings; subscore 1) lower breast to undertail-coverts (2); finer streaking on mid-breast, finer barring on flanks (1); broader, cleaner buff-white supercilium and more distinct mid-crown line (1). Monotypic.
N Krasnoyarsk Krai and N & C Yakutia, from S slopes of Putorana Mts E to R Anabar, and Verkhoyansk and Cherski Mts on upper R Yana and R Indigirka as far E as R Anyuy, along Siberian coast. Winters in Australia.
Food and feeding
Status and conservation
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