Black-billed Capercaillie (Tetrao urogalloides) [XC103320]
by Jon Hornbuckle from 200 km east of Ulaan Bator, Mongolia (lekking)
Black-billed Capercaillie (Tetrao urogalloides) [XC723911]
by Gareth K. from Olsky District, Magadan Oblast, 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.