if it had been a bald eagle, you leave it where it fell (or somewhere else ) & call the Fish & Wildlife folks. no feathers for keepsakes. BIG fines/jail term attached. anything else, I would say "it flew into my Moms/cousins/grandpas window & died."(somewhere else again) banded ducks/geese will get you a neat little certificate showing when/where it was captured & banded. possession of ANY bird of prey, owl, buzzard etc is against federal law.