The droppings of chipmunks and other rodents show that these commensals were numerous, and their presence made necessary the building of storage rooms in such manner that they would be proof against the ravages of such animals. The three cists constructed of stone slabs placed vertically, situated back of the Speaker-chief's House, sometimes called "eagle houses," were probably storage bins; in support of this hypothesis may be mentioned the fact that the cobs, tassels, and leaves of corn are said to have been abundant in them when Cliff Palace was first visited by white men. Although eagle bones are found in the refuse in the unoccupied part of the cave back of the houses, their abundance does not necessarily prove that eagles were confined in them by the inhabitants of Cliff Palace. Perhaps the eagle nests in the canyon were owned by different clans and were visited yearly or whenever feathers were needed, and the dead eagles were probably buried ceremonially in these places, which therefore may be called eagle cemeteries, as among the Hopi.[37] [Footnote 37: See Property Rights in Eagles, _American Anthropologist_, vol. II, pp. 690-707, 1907.] CREMATORIES As is well known to students of the Southwest, the tribes of Indians dwelling along the lower Colorado river disposed of their dead by cremation, and evidences of burning the dead are found among all the ruins along the Gila and Salt rivers in southern Arizona. The custom was also practiced in the San Pedro and Salt River valleys, and along other tributaries of the Gila river. Castañeda (1540) says that the inhabitants of Cibola, identified with Zuñi, burned their dead, but no indication of this practice is now found among existing Pueblos. The ancient Pueblo inhabitants of the Little Colorado, so far as known, did not burn their dead, and no record has been made of the practice among their descendants, the Hopi and Zuñi. [Illustration: PLATE 16 NORTHERN PART, FROM THE SPEAKER-CHIEF'S HOUSE TO THE WESTERN END]