Hill Country low land food movement? Also corn on top of ridge.

[Abenak89]

So how to big bucks come off the hills to enter crops are low elevation? Look for a finger coming down to it?
https://flic.kr/p/2hkXTqH


Also I was hunting the top of a ditch today and had corn to my north and south. I had 3 smaller bucks cruise the edge of corn. I was in wooded area top of ditch. Nothing came thru woods. So I'm curious if big bucks will choose to run the corn edge like they did?