P.206 -Continued- California Condor Eben Mcmillian 25 July 1963 Land use and has not yet harvested a good crop, always just enough to pay expenses. He said that should he ever a crop of 1000 pounds of barley to the acre, and same of wheat, he would retire rich. Most of the land Mr. Johnson Farms is on property of the Company, who are subdividing the area where Camped last night. He said this subdivision commenced about four years ago. The subdividers tell him to keep farming until someone tells him to stop. That when he comes to an area that has been developed or on which a house or Trailer house stands for him to pull out around them and go on farming. He said one or two have come to live on their 2 1/4 acre ranches, but that most only stay 3 or 4 payment then let it go. Johnson thinks most of the land, or plots, have been sold several times. Johnson had not seen Condor I returned to Tehachapi via same route stopping take photographs of Dollar riddled signs and Tank. Saw several Le Conte's Thrasher and 5 Roadrunners. Also a pair of Burrowing Owl. Several times during the day airplanes that flew over the Tehachapi and Antelope Valleys bounced the air with Sonic Booms. In the Antelope Valley area I think these explosions would be two per hour and in the Tehachapi area probably some less, but still more frequent than in most places. Even I hear these sonic explosions quite frequently at home nevertheless they always seem to catch me off guard and give me a sudden start. I am wondering what effect these concussions would have on a large soaring bird such as a Condor. I will inquire of the glide pilots To see if they can feel the influence of these booms. In the evening I talked with Mr. [illegible], the Gar