Hatfield-1934 Lap Ranch, Colorado R., 1½ mi. S.E. Searchlight, 500+ ft, Clark Co., Nev. January 17, 1934 uttered no call notes at all, and alighted very clumsily, knocking down many leaves and making quite a bit of noise for a bird supposedly a night predator. When I skinned it out I found numerous burrs deeply em- bbedded in the feathers. Weeds containing these burrs are rather common there, so it would seem probable that it got them when procuring prey on the ground. January 18, 1934 Caught in traps - 1 Reithrodonomys megalotis 2 Peromycops ceruleiceps 1 Perognathus penicillatus 13 Dipodomys merriami 9 males 4 females, one with one 11 mouse. It is perhaps notable that in the three nights of trapping there has been a reversal in predominance of sex caught as regards D. merriami. The first night with a trapline of 100 traps, the ratio of males to females