and becoming closer to extinction in south africa by the day. >> power line executions and electrocutions are devastating vulture species. >> to supplement the dwindling population of vultures, carrie and her husband, walter, started a captive breeding program on an artificial cliff. this year's first vulture chick has just hatched. >> basically, i'm the surrogate mom. >> since 2007, carrie and walter have successfully released more than 200 vultures, most of which have survived. >> giving any species back its freedom is something quite unique. probably what each and every one of us would like to feel, you know, complete freedom, really.