Finding a travel route and setting up just inside the trees is a good strategy.
Acorns are a good natural food source and they spoil quite rapidly down here in the heat. Hunt only where you hear the acorns actively dropping and save yourself wondering if they are fresh enough. Persimmons, and date palms with fruit can be especially good early season. Later in the season when acorns are less plentiful deer like blackberry briar leaves, honeysuckle, and green briar.