California condor survey field notes, v1477
Page 425
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
California Condor. Eben McMillan 15 may 1964 land bird and the wrist motion of a Golden Eagle is mostly restricted to the outer one-quarter of the wing. See following diagram. [illegible] wrist motion of Golden Eagle Where the wrist motion of a Condor will include at times the outer half of the wing - See following diagram [illegible] wrist motion of California Condor. The second feature one can use in identifying Condor from other large birds in flight, at a distance must be used when the bird is either approaching or going from the observer. It is then that the brush appearance of the outer primaries of the wings give the Condor an unmistakable appearance. See diagrams following. [illegible] Brush appearance of Condor wings at distance. [illegible] Lack of brush appearance of Golden Eagle when seen at a distance. The Tail of the above Golden Eagle is too low and too wide, nevertheless it shows the important feature of lack of brush appearance of outer tips of wings at a distance. At 11:30 A.M. I drove to Cholame flats, passing up the main valley roadway to Cattleguard where the roadway is fenced on each side near the Cholame Rancho Headquarters. No Condor Nor Turkey vultures were seen at this time. Six more Cows had died near the Kerr Grade bottom since I was here last on May 11th, more death Calves were also in evidence. I drove and parked at