Whenever any person has been given written permission by a state or federal agency, with the proper authority, to kill birds which are damaging private property, the Chief of Police shall, upon presentation of such written permit, grant authority to the person named in a written permit to kill birds within the corporate limits of the City.  No permit shall be issued by the Chief of Police to any person to kill birds which are damaging private property within the City, unless such person has first been given a written permit by a duly authorized state or federal agency.