Txbowjukie, they do work, I feel one of the secrets to using them is to put out a " fresh one" and take it with you when you leave. You want to hang them high enough to where they can not smell them relly close, they still have a " human" scent up close, but the basic smell can not be duplicated. Humans are different from animals that go into " heat" , but the smell/scent is the same!