Nicholas Prejevalski,
Mongolia, the Tangut country, and the solitudes of northern Tibet
(1876)
“ These birds, so shy with us, are there so impudent as to steal provisions almost out of the tents of the Mongols. Nay, they will actually perch on the backs of the grazing camels, and tear their humps with their beaks. The foolish, timid animal only cries at the top of its voice, and spits at its tormentor, who returns again and again to the back of the camel until it has inflicted a large wound by means of its powerful beak. The Mongols consider it wrong to kill birds, and so they cannot rid themselves of the crows, which accompany every caravan across the desert. ”

