Originally Posted by nparish
Dogwood trees that fall into the cornus florida species usually have red berries. These are the trees commonly associated with the name flowering dogwood, including the red, pink and white flowering dogwood trees. The cornelian cherry dogwood tree, or cornus mas, has red fruit, as does the kousa dogwood, or cornus kousa.
I have/had some kousa's and those berries are about the size of a grape or larger.
As I said, dogwood was my first thought too but he said he ruled that out however I'll double check and make sure it doesn't bloom in the spring.