Last year the state declared wild pigs an invasive species. Wildlife officials say a wild pig population would be a serious threat to conservation in Michigan. So certain types of pigs will be illegal come April. The ban was mainly aimed at private hunting ranches, but a growing number of hog farmers raise heritage breeds. And they learned recently these might run afoul of the new law. Jim Moses has a farm in Leelanau County. He does not have pigs but is active in the small farm movement. He says the ban is just another attack on small farms and is largely driven by hype.