Since I did not transplant all of them, I am certain they were planted by any one of a number of birds the relish their fruit as much as I enjoy gazing at the berries. I will never know which of my avian neighbors planted these shrubs since more than 40 species of birds gobble up the fruit. The list of potential culprits includes the northern mockingbird, northern cardinal, gray catbird, brown thrasher, northern bobwhite, eastern towhee, and American robin.