California condors: status of the recovery effort
Jared Verner, Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.), United States. Forest Service
Pacific Southwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1978 - Nature - 30 pages
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100 dependent young 50 birds adult and subadult adult survival rate Andean condors annual condor census annual survival rate artificial nest sites Borneman Calif California Condor Recovery California condor survey captive rearing carcasses condor breeding condor recovery effort Condor Recovery Team Dean Carrier decline dependent young alive dependent young needed Endangered Species Endangered Species Act estimated total count feeding Fish and Game Fish and Wildlife foraging Forest Service Fred identified Illinois State University Koford Mallette maximum longevity mean longevity mid-October Miller National Audubon Society nesting areas number of birds numbers of dependent observers pair of condors panmictic pesticide population modeling possible reproduction roosting San Luis Obispo Sanford senescent Sespe-Piru area sex ratio Sibley stable population subadult age classes subadult and adult subadult survival rates subpopulation survival rates percent survivorship curves tion trends U.S. Fish U.S. Forest Service Ventura Counties Wilbur and others2 Wilbur pers Wildlife Service