Hogs Moving Off??

The best job I have ever had is coming to an end...I was sitting in the middle of the woods in a no hunt area...I used to hunt it as a young man and it is full of hogs...last summer during our severe drought I counted over 90 pigs in a half mile stretch...The water had been disappearing and this one canal was about the only water around the area...I used to use the fire monitors to irrigate around the rig...the burmuda grass was growing and was dark green. Some hogs would show up every night and graze on the burmuda...I do remember that we didn't see any hog sign anywhere around because the ground was so hard...for whatever reason the hogs never rooted around where I kept the grass irrigated...when the rains came the hogs spread out and started rooting again...