Guss good luck to ya!!Yes it is very normal for turks to be grouped up through the fall and winter months just part of there social behaviour!The older gobblers will usually have a group all there own but food,water,and roosting sites can move them in with the younger birds!
As far as decoys I rarely use them but when I do I like Buckwings,one of the most realistic looking decoys on the market reasonbly priced but more importantly effective(hen&jake combo)!There are a bunch of places to look at calls,dekes,and all the gear that goes with this sport,one of my personal favorites is midwest turkey call supply!Run a search on it and you''ll be amazed at all the calls on the market!Once again good luck...Bob