California condor survey field notes, v1477
Page 387
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
California Condor Eben McMillan 2 may 1964 Take movies of the Condor. As they approached the area of the Sheep Carcass the Condor, that were now sitting about on the ground, resting, Took off on the wing and sailed out to the Southeast along the ridge that divides the Bitterwater drainage from the San Juan river drainage. Later this evening Jan reported last seeing six Condor, that had circled as a group of eight over an area about one- and one-half miles southeast of Kerr Grade, fly out of sight to the Southeast while the two of the Eight returned. We last saw the six Condor go out of sight at 11:20 A.M. According to my State of California, Department of Natural Resources, Division of Forestry map of San Luis Obispo County, the air line distance between the foot of Kerr Grade and my house is eleven and one-half miles. Now suppose the six Condor, last seen by Jan, were one and one-half miles southeast of the foot of Kerr Grade when he last saw them. This would make the distance they would need to cover, to reach my home, as ten miles. There seems good reason to assume that the one Condor Gladys McMillan saw over our home at 11:30 A.M. was one of the group of six Condor that Jan last saw at 11:20 A.M. This then seems to be substantial evidence that the six Condor covered the ten miles in ten minutes, or an average speed of one mile per minute. This Corresponds to the Speed we established a Condor traveled over an estimated distance over the top of Frazier Mountain last year.