80. Tetraogallus tibetanus.
THE TIBETAN SNOW-COCK.
Huinwal, Ular (Kirghiz); Hailik (Mongol); Cunmo (Tanguts); Hrak-pa, Sikkim.
Male 19" to 21 1/2". female 18". Legs male coral, female orange. Bill male orange-red, female blackish, orange tip. Naked eye-patch red. Above pale grey, tinged pink, fine freckled. Primaries French grey, tipped white. Below white, striped black. Under-tail black. White wing-band. Gorget freckled grey and buff, No white on basal half of outer quills.— Female: Ear-coverts white (Lahore to Yarkand, p. 281). Tibet to Himalayas. Seldom met with below 15,000 feet in summer.
Also T. henrici. Prince Henry's S. C. Differs from S. tibetanus in having throat and chest grey, with narrow white band down middle of chin and throat. male 26".
T. altaicus. The Altai S.C. Differs from S. tibetanus in having the sides and below uniform white, the basal part of outer primaries white, and no white at the base of the secondaries. male 23*. (O.G. i. 85, 86.)