Parent: Phasianidae (Grouse)

└─ Tetraogallus

└─── Tetraogallus altaicus (Altai snowcock)

└─── Tetraogallus caspius (Caspian snowcock)

└─── Tetraogallus caucasicus (Caucasian snowcock)

└─── Tetraogallus himalayensis (Himalayan snowcock)

└─── Tetraogallus tibetanus (Tibetan snowcock)