California Condor Eben McMillan 26 September 1963 However, within its present range, the food supply being so varied and plentiful, it is doubtful that condor welfare will be adversely effected by this change in their food supply. Perhaps when cattle are dying regularly in an area used by condor as a feeding ground and this food supply is abruptly terminated, there could be some effort on the part of condor that were using such an area, to find out that this supply was no more available and a new source established. Probably an optimum situation for condor as to feeding conditions would come from continued, varied, and well scattered food items that would not support condor in any one area for any length of time. This would prevent condor from becoming stabilized in one area for sufficient time, whereby, persons who might harm them would find of their whereabouts, or even persons meaning no harm to them might come to see, or photograph, and thereby create a situation not in the best interests of condor welfare. For condor to become toothsome of humans would not be in the best interests of condor preservation. A stable supply of food, in our given area, lasting more than a week or two, could work against condor. Excepting deer hunting season, there is probably no time during the year when wild animals supply a concentrated supply of food for condor. Domestic livestock are subject to seasonal die-offs. Calving season — diseases, and poison vegetation create periods of plentiful food for condor on livestock ranges. Most stockmen become concerned when their livestock suffer heavy loss and are prone to jump at conclusions as to what causes the deaths. During the calving season many ranchers suspect predation, where more likely deaths among their calves is due to other causes.