No matter where you hunt, bucks will have some form of rattling. If you have big bucks you will get fighting and agressive rattling. If you have a small young herd you will get light sparring rattling. No matter what the bucks will rattle just for fun or for dominance. Here is a place to listen to rattling.
http://www.wideworldofhunting.com/soundsofwhitetail/WhitetailDeerSounds.htm
Learn it. It works.......