No need for bait andcover scent is a waste of time against a coyotes nose. 250 acres is not a lot of ground to hunt coyotes on... you're hunting the same coyotes everytime you visit the property so after 2 or 3 times your success rate is going to fall through the floor. If you want to succesfully call coyotes you'll need to get several farms lined up and start traveling around.... if you just want to get rid of the coyotes on that 250 acres you should look into snaring.

Hope this helps;