Have you ever stuffed a hawk?
I'm going to answer this seriously.
Highly illegal to do that.
Just FYI.
Keeping feathers of native no game birds, blue jays, owls, vultures, is highly illegal for you or I to own.
If you find a feather and a game warden sees you with it, you killed that bird to get that feather.
That is how the law interrupts it, I order for you to have possession of that feather you must have killed the bird to get it.
This is for native birds such as blue jay, cardinals, GRACKLES (yes they are protected).
Pigeons, starlings and English sparrows are invasive species and are not protected.