Yes, especially in northern Canada, but sometimes you can get a peek even in central or southern Canada (though not nearly as bright or even easy to see as in the northern parts).

Those are two very specific locations. I'm genunely curious why you thought they are only visible in those two places?

Churchill is actually right on the prime aurora "line". They have something like 250 nights a year with auroras.

I'm in Calgary AB and Ive had the pleasure of seeing it a couple times! It depends on how strong the storm is as well as the weather conditions (clouds kinda put a damper on it)