Interesting, Jodie. I would have suspected that.
As for seeing bears, the few times I have seen bears in the wilds, there wasn't much misidentification, as their dark color seems to really stand out against the foliage. Even when I could only catch a few glimpses, it was pretty obvious I was looking at bear - even the lighter cinnamon colors.
And thus the mindset jerrywayne mentions - it must be there already to see BF instead of bear. And this also couples with Parcher's suspicions of dishonesty. You want to see BF, so you see it. Never mind what you really saw.
Throw in the thrills of telling the story, plus the societal blessings, and you're quite the deal now. You can even make yourslef believe yourself, given enough time and denial.