See this link for the most complete and recent information on this record: https://californiarevealed.org/islandora/object/cavpp%3A68344.Newsletter reporting on research activities of the Zoological Society of San Diego's Center for Reproduction of Endangered Species. Includes the California Condor Recovery Program and innovative national and international research collaborations to save animal species. This issue includes efforts to sex two California Condor chicks, including Sisquoc, the first hatched in captivity.
For additional information see
California Revealed.