At one time, there were only about 500 desert bighorn sheep in Arizona. Today, thanks to Arizona Game & Fish's (AZGFD) capture and relocation efforts, there are more than 5,000. Here, SCI's Marc Watts discusses with AZGFD's Raul Vega how the Department determines source populations, where to relocate sheep, how they are captured and the precautions taken to make sure Arizona's iconic sheep population remains healthy and growing.