California Condor. Eben Dittmiller 13 February 1964 This hawk flew off towards the east at 11:53 A.M. after remaining on the post for twenty-eight minutes. A Golden Eagle was seen circling above the flat near the mouth of Plieto Canyon at 11:53 A.M. After circling this area for some time this eagle flew northward about one-half mile and continued circling again over an area that was thickly covered with dry Russianthistle bushes. At 12:30 P.M. this eagle was joined by two more of its kind. All circled above this area that was now about one quarter mile north of where I was parked. Poor lighting conditions had prevented my establishing if any of these eagles were immature until 12:35 when the sun shone brightly and it was now possible to see that two of these birds were immature, or, had white at the base of their tails. I could not make out any white markings in their wings. One of the immature eagles, of the three mentioned above, dove three times at the adult eagle. The adult eluded these dives by diving away, downward, turning and twisting while in the dive. One immature eagle flew out northwestward until out of sight at 12:40 P.M. The other two eagles left eastward following the foothills at 12:42 P.M. Joe Kinney, one of the San Emigdio Ranch Cowboys, who had been inspecting the heifers in this field, came my way and stopped to talk at 4:00 P.M. He told me of three heifers that had died calving the last two days in this field that I had been watching. He also said that several heifers had lost their calves at birth here also within the last few days. Mr. Kinney and I discussed factors —