The trickster archetype (our black-garbed avian) exists to question, to cause us to question and not accept things blindly. This meshes nicely with one of The Four Agreements - "don't make assumptions."
When a way of thinking becomes outmoded and needs to be torn down and rebuilt, trickster appears. If you're like me, the first response to the mere suggestion of tearing down and rebuilding the ways you are thinking is to dig in your heels and furrow your brows. I chuckle as I write this, because I'm learning that these responses are exactly the clue that says - yep, girl, this is what you need to dive into. - take a breath and get on with it already. Dropping the resistance makes everything easier.