If It was I.....
I would abandon the bait station... I personally dont have the patience... and best case senerio you will kill one per gun... before you educate the hole lot of them.
Take a look at the property... Start on the downwind side.. and work in slowly... calling softly.. watching your open areas as Coyote approach lanes... the softer the better.... I like to call tight areas with calls that reaching the 250 yard range... anthing over that... your bound to blow the close ones out... and switch it up... rabbit distress, rodent, fawn... pup distress in about amonth... Just be careful to many coyotes are spooked long before guys start calling.... The hunt starts the moment you start looking for a place to park the truck... Your parking spot, your approach to the stand, your set up... etc....
and some good ol luck wont hurt either...
Mike
Pure Predator Championship Calls
www.purepredator.com
and if the bait station trips your trigger.... go to the predator talk cast site the first eppisode was on baiting coyotes...
http://www.talkshoe.com/talkshoe/web/talkCast.jsp?masterId=34247&cmd=tc
Brian Downs does a heck of a good job enlighting the masses on the art of Predator Hunting