California condors, zoo-bred from the San Diego Zoo Safari Park condor program, were reintroduced into the Sierra San Pedro Martir in 1987, the first time seen in the range since 1937. Each year, a small group of young California condors are selected from the pool of birds being bred by the Los Angeles Zoo, San Diego Zoo Safari Park, Oregon Zoo, and The Peregrine Fund for release to the wild. Annual releases range from four to seven zoo-bred birds.