Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
California Condor Eben McMillan 30 July 1964
easily develop in one area and not necessarily affect other
areas of the range. 1964, with a total drought in eastern San
Luis Obispo County with heavy mortality in Cattle Sheep and
deer occurred while ample rains and very satisfactory
range conditions exist along the eastern foothills of the
San Joaquin Valley. Heavy die-off in heifers and calves in
the foothills of the southeastern San Joaquin Valley due
to what is termed foothill abortion took a tremendous toll
of these types of Cattle while little or no trouble with
heifers calving was evidenced in other sections of the
Condor Range. Deer season commences west of Highway
99 in early August running into mid-September that
no doubt furnishes a plethora, even if dangerous, [illegible]
of food for Condor. No sooner does the hold-over of food
from this early deer season run out than the later, or
East of Highway 99 deer season take place. This deer
hunting in itself should furnish all Condor with ample
food for three months (Aug-sept-Oct) of the year. We have
now fairly established that except for a lull in late May,
June and early July, Cows are Calving throughout the
Condor range throughout the Year.
The above are but a few of the factors that can be used
to substantiate our thinking that food for Condor is of
no consequence as a survival factor.