Most of my mouth calls are Lohman, Circe, Primos, and Burnham Brothers. I've got one that sounds like a young sheep or goat. We don't have either anywhere close to here, but the coyotes don't know that. I've also used domestic cat, prairie dog, vole, and quail sounds on my FoxPro. To a coyote, these sound like an easy meal. And even the educated coyotes will often venture into shooting range, because they haven't heard anything like these sounds before.