FILE - In this May 25, 2000 file photo, Desert Bighorn Sheep eat and rest in the Condor Ridge exhibit at the San Diego Wild Animal Park. A new survey has found a sharp decline in desert bighorn sheep in Southern California, and biologists suspect the cause is a disease contracted from domestic animals. The California Department of Fish and Wildlife says a survey in early March 2019 counted 60 bighorns in the Mount San Gorgonio region east of Los Angeles. That's down two-thirds from a survey conducted in 2016.
FILE - In this May 25, 2000 file photo, Desert Bighorn Sheep eat and rest in the Condor Ridge exhibit at the San Diego Wild Animal Park. A new survey has found a sharp decline in desert bighorn sheep in Southern California, and biologists suspect the cause is a disease contracted from domestic animals. The California Department of Fish and Wildlife says a survey in early March 2019 counted 60 bighorns in the Mount San Gorgonio region east of Los Angeles. That's down two-thirds from a survey conducted in 2016. Bob Grieser, File AP Photo
FILE - In this May 25, 2000 file photo, Desert Bighorn Sheep eat and rest in the Condor Ridge exhibit at the San Diego Wild Animal Park. A new survey has found a sharp decline in desert bighorn sheep in Southern California, and biologists suspect the cause is a disease contracted from domestic animals. The California Department of Fish and Wildlife says a survey in early March 2019 counted 60 bighorns in the Mount San Gorgonio region east of Los Angeles. That's down two-thirds from a survey conducted in 2016. Bob Grieser, File AP Photo