I have not found anything that works consistantly for me, other than going squirrel hunting I run into more then than any other time. I have called a few with a rabbit in distress and want to try a howler sometime. For some reason I can't get them to respond very often for the number of coyotes that i know are in my area. I have shot a couple dozen, most while hunting something else, and trapped a few more but certainly am no master