The snow pigeon (Columba leuconota) is a species of bird in the Columba genus in the family Columbidae from hilly regions of central Asia. They are grey, black, pale brown and white birds, and two races are recognised; C. l. leuconota occurs in Afghanistan and the western Himalayas; C. l. gradaria occurs in the mountains of East Tibet and from East Nan Shan (Qinghai) to Yunnan. The birds forage in open country in pairs or small...