deer adjust pertty fast to changes
most stay where they always have, some however will pick up and relocate maybe off the lands

deer like cut paths, so they might do you more good than bad, even more so come gun season when you can have longer shooting lanes now

did he just cut them or bulldozed them

if he bulldozed the, now is a great time to make food plots out of some spots on them, lime seed and pray for rain, and you will have made hot spots to hunt over!

in the yurs to come new broswe will grow in them again making good fed for the critters, thus good hunting too