As sheephunter already pointed out take a look at a lynx and you will notice they only have about a 2" long tail and a bobcat has about 6". It is a pic of one of the cougars we don't have in Southern Ontario. I was recently told about a cougar that was shot by a farmer 20min from Kitchener it was wearing a tracking collar and the MNR magically showed up later to collect it. About 8 years ago a farmer friend of mine told me he saw a wolf watching his sheep and wanted to know if he could shoot it I of course said you mean coyote he said no a wolf. I said you can protect your livestock anytime, he wanted to double check so he called the MNR. They told him there were no wolves here and he saw his neighbors dog, that night he shot a 133lb timberwolf and I skinned it the next day after the MNR guy looked at it and said "I think thats a Timber wolf". It too was one that we didn't have in Southern Ontario.
Regards.