Mayhew 1958 June 12 Journal 91. Colorado Desert, Calif. We began night collecting along Highway 78 and also along the road leading to Borrego Springs. Although no wind had been blowing during the day, it blew quite hard after sun- down. The temperature was a good deal below normal for this time of the year (got to 59°F. during the night). Consequently, almost nothing was on the road. A total of 3 Phyllorhynchus decurtatus were finally collected, and all of these were on the Vallecito Road. (This road is now paved 16 miles from Scissors Crossing.) We returned to Yaqui Well at 12:30 AM & camped for the rest of the night. June 13 After observing the birds around Yaqui Well for 2 while this morning, we started for home at 10:30 AM. 3½ miles south of Warner's Hot Springs we found a small bridge with a good-sized colony of cliff swallows. It would be an easy bridge to work - no water, low, can be completely sealed. 26 miles N.W. from Warner's Hot Springs another bridge was found that contained cliff swallows and bats (Myotis yumanensis). It would be a fair bridge to work, but it is rather high, & the meats are between