There's always something. I do believe that voles and moles have cast iron digestive tracks. I don't have them here. Well, moles don't eat plant material but they do leave unsightly run damage to grass roots and push things out of the ground.
I have read that hawks, owls and snakes will eat both moles and voles ... and we have all three around. The Black Rat snake always startles me but I just thank him (or her) for the efforts. We have Cooper's hawks that hunt here frequently as well as a few owls. I hate it when they eat other birds and the shrews, but they do a good job on the moles and voles. It's a love-hate relationship.
