A very interesting discussion. I'm a fishing fly tier and have resisted the temptation many times to take feathers from road kills, knowing that if found out, I could be in trouble. But if I may go slightly off track for a bit...I understand the use of eagle feathers to mark a leader's physical position or rank, on the field, but what about the wearing of small decorative body or hackle feathers under one's badge for a bit of color? I've seen pictures of such use.