Considering what you told me about your birch experience last summer at the camp you attended, it's entirely very likely Night Hawk, as it fits with how you would be able to relate to that being, and not feel anything but positive and safe feedback from the experience.
Check again when you have the right circumstances and see if something similar happens again, and visit the same tree again at this year's camp too. Let me know how it goes. Feel free to post it here in the board too if you feel comfortable with that.
Love people and use things, NOT use people and love things...