npaden you have me confused with your post. That first pic, is that an actual pic that you claim as a false trigger. Unless that is the post in the top right hand corner, I could not make out the post you are speaking of. If that is the post, and that is the actual pic from the camera, I doubt that it is the post causing the triggering of the camera as I think it would be just outside the detection range for the camera. But that is an easy test to see, just come up behind the post to see if you can trigger the pic by moving your hand while holding the post still (you said cam will take a pic every minute).

Also many things can cause a false picture. Normally a trail camera will require both a change in heat signature and detect motion for the camera to be triggered. The corn could be heated up enough to give you a change in heat signature, but some of the grass near there could be long enough to give the motion detection needed (if your camera is that sensitive, can you turn down the sensitivity). Also a slow triggering cam could have just missed the animal. Birds are also a large factor with corn on the ground. They could land, grab a kernel or two and leave before the camera triggers (blue jays are noted for this in my area).

Check the motion range of the cam in regards to the post, try to eliminate the tall grasses or other objects that can blow in the wind and see what happens.

Good Luck