Wild blueberries are so much better than cultivated ones. Of course if you’re searching for wild ones you better know your environment. The bear might get you. They love blueberries too.
When I was growing blueberry bushes the major 'foe' was mockingbirds.
They would sit on the next door neighbor's fence watching and
waiting for the berries to get ripe. And then gorge themselves when they were.
Infernal birds!