Against the rearward face of such back walls when present (that is, between them and the rear of the cave itself), behind the village proper, if space further permitted, small rooms, ordinarily of one story, or pens, sometimes roofless, were built for the housing of the flocks of turkeys which the cliff dwellers kept. Beyond these poultry houses was still kept, in the deeper village caves, a space, dark and filled with loose soil and rubbish, in which certain of the dead, mostly men, were buried; while other dead were interred beneath the floors of the lowermost rooms, when the soil or sand filled in to level up the sloping rock bottom of the shelter was sufficiently deep to receive them. A noteworthy peculiarity of the doorways in the upper stories leading toward the rearward storerooms already described was that they were often made T-shape; that is, very narrow at the bottom and abruptly widened at the top. This was done in order to avoid the necessity of making these openings for entrance and egress too large proportionally to the small size of the rooms. Thus, neither were the walls weakened nor were the inmates needlessly exposed to cold; for fuel, even of the lightest kind, was gathered with risk and transported thither with great difficulty, and the use of it was therefore limited to cookery, and yet a person bearing a back load of corn, or other provender might, by stepping first one foot, then the other, through the narrow lower portion of such a doorway, then stooping with his blanket or basket load, pass through without inconvenience or the necessity of unloading. Nearly all of these features--so suited to, and some of them evidently so unavoidable with, a people building eyrie-like abodes high up on limited sloping ledges in pockets of the cliffs--were, although they were totally unnecessary to the dwellers in the half-round or double half-round towns of the plains, where space was practically unlimited and topographic and other conditions wholly different, nevertheless characteristic of these also.