Take him out at night when the rats are out and about, rats are smart but rather slow. My girls have the same problem, I need to get a couple of Jack Russells to help them out.Our dog is interested, but can't get to them. He's tried sniffing them out and trying to dig out their holes, but the holes must be too deep. If he makes the holes any bigger the foundation of the coop could collapse. It is set a top cinderblocks.
