Gaur, or bison,[23] as they are usually called, are found in suitable localities, from the Terai, through Bhootan, Assam and Burmah, to the Malayan Peninsula and throughout Central and Southern India, but do not extend to Ceylon. The 28th degree of North latitude seems their extreme northern limit, otherwise it would be difficult to account for their absence in what appears to be such thoroughly suitable ground as the Sewalik range and the lower slopes of the Himalayas north of this limit, although elephants, whose food and requirements are almost identical with those of the gaur, are plentiful there. Hilly country, covered with extensive tracts of forest and bamboo jungle, is the likeliest ground for bison, though they occasionally visit the low ground at the foot of the hills, particularly when driven from the higher ridges by flies and the want of suitable pasture. Bison vary much in their habits according to locality; their migrations from high to low ground being mainly influenced by the rainfall (which regulates the growth of grass) and the prevalence of flies in their district. During the latter part of the rainy season, when the grass has grown high and coarse and flies are most numerous, Sanderson remarks that bison move into the thinner jungle at the foot of the hills. Forsyth says that in Central India bison retire to the tops of the hills at that season.
The general colour of an old bull bison is a dark brown, almost black, with a light slaty patch on the forehead, a grey muzzle, and the legs, from above the knees and hocks downwards, a yellowish white, the inside of the forearms and thighs being chestnut; the head is particularly handsome, and well-bred-looking, the high frontal which rises above the base of the horns adding to, rather than detracting from, its beauty; the pupil of the eye is large, and of a pale blue colour. Jerdon says the eyes are small. They may be in actual measurement, but they certainly do not appear so. The muzzle is large, and the ears broad without being coarse. The ears of an old bull are often torn to ribbons from fighting. The horns of such animals are rather rugged at the base, and the points are chipped and worn; but they are massive, have a beautiful outward curve, and are light coloured. The neck is short and powerful, the skin rather loose, with curious wrinkles in it that give the appearance of a small dewlap, which the beast is really destitute of. Behind the neck the beauty of the bison vanishes. The high dorsal ridge towering above the insertion of the neck makes the shoulders look loaded and straight, and the neck itself put on too low; the ridge running down to the centre of the back and there ending abruptly gives the quarters a dwarfed and drooping appearance, though this is far from being really the case. The tail is rather short and fine; the legs are particularly fine and clean, the hoofs being marvellously small and neat for so large an animal.