A lot of the calls will work on fox. Rabbit in distress, rodent squeaks, bird in distress. If your using an e-caller keep the volume down, the same go with a mouth blown call. Keep the volume down. You have to remember that a rabbits lungs are about as big as your thumb. So you don't need to blow a call like your trying to have someone in the next county hear you. Sneak into the area you want to call, and be quite coming in. After you get into the area you want to call, sit tight for around 10 to 15 minutes. And let the woods or area get accustom to your presents. They're are a millions set of eyes watching you. Then start your calling. Keep the wind in your face, use a good camo, and use some kind of backstop to break up your outline. Don't give up they'll come into you eventually......Good Luck Calling!