Good for them.
Eagles are not endangered. To the tribes, they are sacred. Not a bit of the eagle will be wasted. I say, let them go for it.
AND leave the rest of the religions alone too.
Recently a young friend, a member of the Nortern Arapahoe tribe, signed up to learn to participate in the Sun Dance. He said they required himto make a commitment of four years participation in the annual Sun Dance. Last year we were watching the Sun Dance and they accidently dropped a feather on the ground and the dancing was immediately halted and the crowd was silent as an elder of the tribe picked up the feather and reverently performed ceremony with the feather facing in the four directions then returned the feather to the dancer who had dropped and the dancing then resumed. All the little children were dressed in traditional costumes that their mothers had obviously worked worked very had making. The mood of the crowd was
quite festive and happy.