I dunno, I think this song is literally about a bear, I don't see any reason to take it metaphorically (of course it presents the bear as thinking like humans). All the details of the lyrics seem to me to point to the narrator being a bear:
"I was first attracted by your scent, your heart must be a carmelized onion" - bears have a sharp sence of scent obviously, and the victim's heart smelled like candy to it.
"by the time I saw your flame, it was all over for you and whats-his-name" - the bear was attracted to a campfire where two campers were sitting around a fire, at this point defenceless
"I think it was Algonquin Park" - lots of people go canoeing and camping in the backcountry in Algonquin Provincial Park, and a few people have been killed by bears there.
"it was so cold and winter-dark" etc - the bear eats the people when it's fattening up for winter hibernation, and then when the lake freezes over it walks across to an island to hibernate. In the spring, park staff hunt it down. I think in real life they'd hunt a bear down a lot quicker than that if it ate people.
I dunno, I think this song is literally about a bear, I don't see any reason to take it metaphorically (of course it presents the bear as thinking like humans). All the details of the lyrics seem to me to point to the narrator being a bear: