If it has goofy large ears, an elegantly pointed muzzle, a tawny or rust coat, and makes high-pitched, excited noises:
It is a coyote.
If it has a boxy head, a large, powerful snout, big paws, and howls as though it is in mourning:
It is a wolf.
I do not have any idea how you manage to confuse red foxes and wolves, but if you are really struggling, remember that (true) foxes have slitted pupils and wolves never do (also, huskies are the ones with curled tails and blue eyes).
Just because Nosferatu got away with using a hyena for its 'wolf' does not mean you can go calling every four-legged creature a wolf all willy-nilly. Nosferatu was made in the barbaric year of 1922. France was still using the guillotine in 1922. Harding brought the first radio into the White House in 1922. It was a strange, primitive time in which no one could Google "do wolves really have cheesy spots and a mane". We expect better of you now. Do it for your country.