Mastering your calls is your first step, as in mastering them so using all of them becomes second nature. Hunts commonly fail due to poor calling techniques.
Ditto, and thanks Ladobe, I sure have learned a lot from you in my years here.
My howling experience started with the Bill Austin howler calls. They are of very cheap manufacturing design but have a good Reed and Bill's inclosed cassette is what was really the icing on the cake. Bills Howlers and his language break down were IMO still a pretty good secret as late as 1986 and my sucess rate went up right away but I had done much practicing along with listening to that tape over and over. While Bill is now gone, His calls and package may still be avalible although I have not checked for a while on the allpredatorcalls.com
Part of my "practice" after getting my sounds close to what I was hearing on the tape was to drive some selected rural routes at night with the call only. I would stop here and there and give Bills greeting's a try. Long to short, the response that I was getting was enough to make the hairs on the back of your neck stand up!
I am not saying that you have to get the Bill Austin calls. I also own a Primo's outfit that you can pick up from the likes of a Walmart. I listened to the CD that came with this call and found that it was in the ballpark to what I was doing. This is the Randy Anderson Primo's hot dog package but I have never taken that particular howler out as I prefer the portability of My Bill Austin calls.
My terrain here sounds a lot like yours with the dense lots surrounded by open field. Some of these lots have cattail swamps in them and if I get there real early of a Morning, I will start with a cottontail squaller with the intent being to get a Red or Gray Fox to come in quickly...Those Coyotes will always be out there.