By Lauren Morris Heidi Fleiss, a former Celebrity Big Brother star and once known as the Hollywood Madam, has made a big career change. The 58 year old, who was part of the 2010 series of Celebrity Big Brother won by Katie Price’s ex Alex Reid, now works at a bird sanctuary in Nevada, rescuing macaws. Fleiss was one of the most talked-about women globally when she was arrested in 1993 for running a high-end prostitution ring. She reportedly had an elite client list and was said to earn £442k a week. But her empire crumbled in June 1993 when she was arrested and charged with five counts of pand…