djr,
Most coon squallers are designed to sound somewhat like an angry raccoon growling. Their main purpose is to cause a treed raccoon to look at you so that you can see where he is in your light. These calls are used mostly by those who hunt raccoon at night with aid of dogs. If you want to actually call raccoon, you can learn to trill your tounge into a predator call and make it sound somewhat like a bird in distress.