Authorities warn that coyotes can be a real nuisance in populated areas as well as rural areas. Recently, one homeowner in Powell Butte reported that Monday, two coyotes attacked their dog, nearly killing the pet. ODF & W Wildlife Specialist Steven George says the attacks are not uncommon. And the best way to deter them is by removing a food source: “Primarily, the best thing to do id to keep food sources at bay. And that would be: if you have livestock out, if you have chickens out, you want to have then well-protected, fenced and contained so that predators can't get into them. They will only hang around long enough, as long as they know that they can get some food sources there. And that includes leaving cats and dogs out. They see that that as a food base." George says installing a light or sound sensor that can startle the coyotes can also help. He says coyotes roam around both day and night; so almost all animals are vulnerable, and this includes lambs, calves and deer.