I can say also... even though Native Americans have "rights" to possess Eagle feathers, they can only do so by possessing the proper paperwork... which is easily obtained... but still required to possess feathers...
I am curious about the provisions of armigers possessing eagle feathers, would they have to be required to obtain the permits, once they prove their status. Or because its a status recognized by a foreign entity, it is a mute point to even apply for said permits?