I have said before that I know what birds like, and have created a slideshow of the variousCornus, or dogwood, species that I grow–all of them good wildlife plants. But since the berries produced by Cornus alba and Cornus sericea, both twig dogwoods, really don’t catch my eye, I was interested to see that gray catbirds and tufted titmice, in particular, are positively wild about the unassuming white fruit.I grow a few varieties of Cornus alba andC. sericea, including the variegated-leaf, gold-twig ‘Silver and Gold,’ the gold-leaf, red-twig sericea called ‘Sunshine’ (above, in fruit; Cornus