My uncle and I like to plant lots of alfalfa and soybeans, so we can see the deer better. We also take a 5 gallon bucket of corn and dump it about 30 - 40 yards from are stand. We have also used a thing called dynamite and it goes into the ground after it rains, and the big bucks will go and scrape in the ground and sometimes they will even dig 3 or 4 feet deep. Good luck and get a big one!
When calling coyotes, more often than not they will circle on a target they are
coming into and approach from the downwind side. Presumably they do this in
order to align what they smell, with what they are hearing.
This means that you should always have your downwind side camouflaged and have
an open shooting lane. If the area is heavily covered the coyote could come in
take a look and be gone, with you none the wiser.