One of our neighbor's dogs (border collie, very friendly, leaves domestic animals alone) does a late night/early morning patrol of the properties along our hollow (valley between hills). We only found this out when we found dog foot prints in snow, several days in a row, always within several feet of the previous night's tracks. We think this is why the coyotes/coywolves stay out of hollow and up in the treeline.We have seen coyotes too. We saw a dog about 3am every night for a while on our camera. Strange.