I use the howler as a locator, go out at night find out where they are at. The next morning slip in to you spot. wait about 20 min then use some kind of distress call, I have very good luck with a turkey diaphram call. I put it in my mouth and just squeak on it, say WE. Try and act out the animal being attacked, start out soft because you do not know how close the cyotes are. gradually get louder.