Opossums are low risk for having rabies, but not zero risk. The CDC reports three confirmed rabid opossums in 2014. It's illegal, and unkind at least, to relocate most wildlife species. Here in Michigan, you can move a trapped critter either on your own property, or to another private property within your county, with landowner permission. The relocated animal will have to try to move home again, or struggle to fit into another territory, and knows about chickens and traps. Mary