Although they are locally sympatric with Siberian ibex, the two species have differing habitat and pasture preferences, reducing likely competition. In Tibet, the argali must regularly compete with other grazing species for pasture, including Tibetan antelope, bharal, Thorold's deer and wild yaks. Competition is most serious with livestock, especially domestic yak and domestic sheep, with which argali are frequently forced to intermingle and from which they often catch diseases and parasites. The main predators of argali are Himalayan wolves, which often exploit harsh winter conditions (such as deep snow) to capture the wild sheep, though they can and do take specimens of any age or condition year around. Where not locally extirpated, snow leopards and leopards are also predators of argali of any age. Eurasian lynx and wolverines may seldom kill argali to at least the size of winter-weakened ewes. Red foxes and domestic dogs (largely those kept by sheep-herders) will prey on lambs. Cinereous vultures, lammergeiers and golden eagles have been observed circling herds of ewes with lambs in a possibly predatory manner and remains of argali lambs have been observed in golden eagle nests. Smaller predators, such as raptorial birds and smaller mammalian carnivores, are attacked by mother ewes, but in the presence of larger predators, the ewes quickly run away with the lambs following them.