California condor survey field notes, v1477
Page 203
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
California Condor Eben McMillan 18 February 1964 Both these adult Condor remained circling above sulphur Creek for some time. Neither came close enough for me to identify them by missing feathers. An adult golden eagle stooped at one of these Condor and drove it close to the hillside on the brush Covered, North, face of Sulphur Canyon. This eagle continued to drive at this Condor until it left Sulphur Canyon and flew out of sight around the east face of Sulphur creek at 12:35 P.M. The other adult Condor soon followed, heading up Hopper Canyon. Three Golden Eagle were circling above the east top of Hopper Mountain at 12:39 P.M. Except for brief periods of time during the day, Red-tailed hawk and Golden Eagle could be seen flying somewhere in the area. The red-tailed-hawks were all immatures. I saw at least two adult golden eagle and at least as many immature eagles. One of the immature Golden Eagles was undoubtedly a specimen that had been here for some time and had been seen on other occasions. It has long white stripes under the outer wings and the tail is very white. At 3:56 P.M. an immature Condor came out eastward over the top of Hopper Mountain. It moved on eastward, then northeastward over North Sulphur Creek ridge and went out of sight behind this ridge momentarily before returning again to area above Hopper Mountain where it sat on the wind, that was blowing strongly from the east, until 4:06 P.M. when it flew out of sight through North Sulphur Creek pass at 4:08 P.M. During the twelve minutes this bird was in the area it made only three complete circles. Otherwise it faced into the wind continually, drifting backwards, forward or side-slipping to one side or another, or lowering-