Cool! I 'd love to see a wolf in the wild. If its body was in fact 50+ inches long excluding the neck & head then it was definitely not a coywolf which some of them can reach 50-55 pounds. It's strange it did not run away at the sight of a human, and so close. Wolves are very smart and know they don't belong in a residential area so they are "generally" extremely cautious and do their best not to be spotted by people. What's interesting is this canine behaved like a coyote which at times will stand its ground waiting for the (smaller) dog to chase it into the woods where it will attack it or drive it into a trap where other coyotes are waiting to elimination it. A 30lb dog is usually no problem for a couple of good sized coywolves. Then again a wolf will probably do something something similar.I have seen a lot of coywolves in my area and they definitely look like wolves except smaller and usually have some red/orange fur (and people here always say "I saw a wolf today!"). I think wolves in the winter are predominantly gray & white (with some black), but I am no expert. Also big coywolves will reach a body length of close to 4ft, so I would not exclude a coywolf if they are common in your area (?), since a 52" body excluding the neck & head is the size of at least a full-sized adult female wolf.