W.B.Savio 1935 5 mi. S.E Murphy, Owyhee Co., Idaho, May 26. Even tho the sky was overcast there was no rain. Friday was clear with a slight breeze. Stayed in camp until nearly 3:30 P.M. making up specimens. From that time until 6:00 P.M. Twining and I hunted for Citellus leucodon in the low Atriplex. There is quite a colony present in front of Mrs. Clifford's ranch, but we have been unable to locate them any other place. It is peculiar how these squirrels seem to be congregated in a restricted area about 200 yards in radius while the rest of the territory appears to be as favorable. In the surrounding territory there are old mounds, probably made when squirrels were more abundant. Another alternative could be that the colony as a whole might gradually migrate due to the expansion of the area by the young and the old squirrels dying off leaving the old home site vacant. We succeeded in killing 11, I 5 and Twining 6. However, there were only two that could be considered adults. Most of those seen were young of the