I have two beautiful livestock guardian dogs who do their job wonderfully. However, this spring they began digging huge holes all over the pasture, trying to catch the moles (we have LOTS of moles.) We can live with a few holes here and there and just fill them in, but they have dug SO many, and they go at times close to 2 feet deep. I am worried that this could be dangerous for the sheep, if they get spooked and run wildly, wondering if they could break their legs. Also wondering how much this will damage our very productive and healthy hay field. Any advice on this issue? I tried filling them with feces, they just dig elsewhere, as there are moles everywhere. Two acres seems to be too big to try to eradicate all the moles. Thank you!