Black-billed Capercaillie (Tetrao urogalloides) [XC103321]
by Yong Ding Li from 200 km east of Ulaan Bator, Mongolia (lekking)
Black-billed Capercaillie (Tetrao urogalloides) [XC401842]
by Frank Lambert from Yelizovsky District, Kamchatka Krai, Russian Federation (song)
Subspecies
Forms superspecies with Western Capercaillie (Tetrao urogallus), with which frequently hybridizes in the limited areas of overlap in basin of R Yenisey. Birds from various parts of Siberia formerly awarded subspecies turensis, janensis and kolymensis, and those from Transbaikalia macrurus.
The following 4 subspecies are recognised:
parvirostris Bonaparte, 1856 - Eastern Siberia, from lower R Yenisey to the upper R Anadyr, south to Transbaikalia, Manchuria, Ussuriland and Sikhote Alin Mts; Sakhalin I.