(a) Public employees or authorized agents acting within the scope of their employment for public safety or wildlife management purposes;

(b) Normal agricultural or livestock operation practices; or

(c) Recreational feeding of wild song birds, hummingbirds, or passerine birds, unless a previous warning by the City to cease or modify feeding practices is disregarded and such continued practices attract wild deer, elk, moose, or turkey in such numbers or circumstances to cause property damage, endanger any person, or create public health concerns.