their mothers. Ordinarily a herd would consist of does, fawns, and yearlings, the latter carrying their first antlers. But it was not possible to lay down a universal rule. Again and again I saw herds in which there were one or two full-grown bucks associating with the females and younger deer. At other times we came across small bands of full-grown bucks by themselves, and occasionally a solitary buck. Considering the extent to which these deer must have been persecuted, I did not think them shy. We were hunting on horseback, and had hounds with us, so we made no especial attempt to avoid noise. Yet very frequently we would come close on the deer before they took alarm; and even when alarmed they would sometimes trot slowly off, halting and looking back. On one occasion, in some bad lands, we came upon four bucks which had been sunning themselves on the face of a clay wall. They jumped up and went off one at a time, very slowly, passing diagonally by us, certainly not over seventy yards off. All four could have been shot without effort, and as they had fine antlers I should certainly have killed one, had it been the open season. When we came on these Colorado mule-deer suddenly, they generally behaved exactly as their brethren used to in the old days on the Little Missouri; that is, they would run off at a good speed for a hundred yards or so, then slow up, halt, gaze inquisitively at us for some seconds, and again take to flight. While the sun was strong they liked to lie out in the low brush on slopes where they would get the full benefit of the heat. During the heavy snow-storms they usually retreated into some ravine where the trees grew thicker than usual, not stirring until the weight of the storm was over. Most of the night, especially if it was moonlight, they fed; but they were not at all regular about this. I frequently saw them standing up and grazing, or more rarely browsing, in the middle of the day, and in the late afternoon they often came down to graze on the flats within view of the different ranch houses where I happened to stop. The hours for feeding and resting, however, always vary accordingly as the deer are or are not persecuted. In wild localities I have again and again found these deer grazing at all hours of the day, and coming to water at high noon; whereas, where they have been much persecuted, they only begin to feed after dusk, and come to water after dark. Of course during this winter weather they could get no water, snow supplying its place.