My mistake, as my memory has faded over the yrs. It's face & muzzle were dark, not white. See the pic below.I don't have a pic of an odd looking coyote that has had it's DNA tested. As to it being a coydog. However early 80's I killed a very large male coyote. That had an off white face. It's muzzle was very dark & had a dark blue hue to it's coloration. Also around it's off white face. Was a very thin line of dark blue/purplish fur. Was it a coydog? Who knows? But what I've seen to date out of a few thousand coyotes. IS...no PURE bred coyote. Has the color blue in it's fur.