Contrary to popular belief, Sadie, they are NOT allowed to pick up those shed eagle feathers. The only legal ways for Native Americans (with proof of tribal enrollment) to obtain feathers from non-game animals is to get them thru the Federal Eagle Repository or thru direct transfer from one licensed possessor to another. The reason this law is so strict is to prevent people from shooting eagles and hawks, stripping the feathers and claiming it all came from the natural molting process. I know, it seems counter intuitive. The laws tried to plug all the loopholes that the poachers were using.
If you have a city park nearby with geese and ducks on it, start taking walks there daily. They are about to start molting their feathers and those are legal to pick up and possess (still, check with your local conservation office to be sure...while you are at it, ask them if they will provide you with wings and tails from confiscated turkeys, ducks, geese, and other game birds).
BTW. I am going to build a half dozen of those Mojave bird traps and see if I can get some downtown buildings to allow me to put them on the roofs! Mmmm, Squab!