i have allot of hand calls,just around here we don't have jack for rabbits and everyone and there dog educates them with that call we wack the $hit out of them with fawn distress that is about the only sound i use for yotes and bears when i am calling to there food part of there brain. i like howls and challenge calls to but they have not started responding to them very much so still using prey sounds give it a few more weeks and my mouth calls with do the trick with howls but like to use the fox pro challenge with my howls= bad medicine for yotes