They look like Berries that You Shouldn't Eat, also known as Berries that Birds Eat.
Because the theme of this summer is I AMSTERDAM, I bought a small package of Red Berries this evening at the grocery. Louise and I each ate two of them this evening. They tasted like a) pomegranates and b) a slightly sour raspberry. But mostly they tasted like Berries You Shouldn't Eat. We're planning on comparing any side effects that we may experience sometime tomorrow.