So I set-up looking down a trail leading into a bottom where I knew coyots were hanging out and right out at dark I let out a single howl. A couple minutes later about 4 of them opened and man did they open. They went on for about 3 or 4 mintues straight yipping and howling. About a minute after they stopped I let out a challenge howl and didnt hear anything for about 5 mintues when I heard a few barks farther away then the original group howl. So I waited about 10 minutes and starting ki ying; heard a few more distant barks and that was it. I sat tight for about 15 mintues then left. Was my sequence ok or should I have gone abot it differently? Thanks!