No. 267, _P. truei_, juvenile. This male ran into a fallen juniper log 40 feet southwest of station P7a and then disappeared into a hole leading under an adjacent rock. Dissection of the log revealed many chewed juniper seeds inside and beneath the log, but no nest. I did not overturn the large rock or excavate under it. No. 268, _P. truei_, adult. This pregnant and lactating female ran into a hollow branch of a partly-dead juniper tree 10 feet south of station O7d. The limb and base of the tree were hollow, and there were large numbers of chewed juniper seeds nearby. Because of time limitations, the branch was not dissected. No. 74, _P. maniculatus_, juvenile. This female ran into a small circular hole in the ground 13 feet north of station J3a. Excavation revealed that this hole led into the abandoned tunnel of a pocket gopher (_Thomomys bottae_). The tunnel was followed for about four feet, but no nest was found and the tunnel led under a thicket of oak brush which made further excavation impractical (Fig. 15). No. 247, _P. maniculatus_, adult. This male was followed to a large nest situated at the base of a stump and under a juniper log lying beside the stump, five feet from station I2c. This large nest was built on the ground and was constructed of grasses (_Poa fendleriana_, _Stipa comata_, and _Koeleria cristata_), and contained a few leaves of Gambel oak. It was the largest nest found. Chewed pinyon nuts were in the nest. (Fig. 15). No. 276, _P. maniculatus_, juvenile. This male ran into a small hole at the base of a dead juniper tree 40 feet north of station O2c. It would have been necessary to cut the tree down to uncover the nest, and this was not deemed to be worthwhile. The preceding accounts indicate that, in Mesa Verde, nests of _P. truei_ usually are associated with hollow juniper logs or branches. In one instance a nest of _P. truei_ was found on the ground, under a rock. Shredded juniper bark, and, in one case, grasses were the materials most commonly used for nest building. Individuals of _P. maniculatus_ did not build nests in trees. One nest was found under a stump and adjacent log. Another site was in the abandoned tunnel of a pocket gopher, and a third was under a large rock. The only nest that was unquestionably built by a _P. maniculatus_ was constructed of grasses and a few leaves.