I love to call deer.I call to them all the time. Most just keep going,but every once in a while one will come in and its just wonderful. But to fully understand rattling and challenge calls you need to know about dominance in the deer herd. A good read on this is The King of Deer by Rodney Marberger,a retired biologist with the Texas Parks and Wildlife. It`s out of print now but can be found on some auction site.
A deers whole life is spent in a fight for dominance whether buck or doe. People that feed deer around their house and watch a lot can see it within "their" herd. Long before the rut starts the dominance factor is known. There will be no fights in that herd,as there is no need ,every deer knows the bad ass factor of all the other deer. But if a deer has to wander,whether for food,water or sex,it will run into deer with an unknown pecking level. The dominance thing rears it`s ugly head and it must be decided. Most deer never have to wander so there is never a problem,but if bucks start to wander,looking for more does,they will eventually run into deer they don`t know and dominance must be decided.
I`m starting to think in areas with more equal buck /doe ratios, a challenge call is the way to go. But as Big Dog stated with his out of kelter buck /doe ratio,the snort/wheeze,and rattling wont work as the bucks dont have to go searching for does,and know the pecking order of all the deer they meet. However, the new growl call just might work. It has to do with a hot doe gaurded by a buck and trying to keep other bucks away. If you see a buck going by you,it does`nt hurt to give him a call.Who knows,it just might work,and it`s so exciting when it does.