I recently found a dead buzzard aside the road. sneaky I pulled the feathers out, went home, and fletched a war arrow with it. The fletching looked good, until I loosed my first shot. then my second, and third... and the fletching was totally ruined. It's beautyfull, but way to weak.
I wouldn't advice it for bound-on fletches, maybe just glued on, but you'd better be carefull and use low fletches to keep them as strong as possible.