Sounds like you have a nice set-up. I live inland from you, in North Augusta SC, right across the Savannah River from Augusta GA. Can't emphasize enough about predator protection. Hawks, owls, etc. are in my opinion nothing but varmints from a poultry standpoint and can be the worst predators (it's hard to prevent an aerial attack). I'd rate dogs as the next worst. Deterrents may help, but I wouldn't rely on them 100%. I invest too much time, money, and care in raising my birds to have them killed by predators. You've got to keep in mind that even wild fowl are preyed upon, and that the survival instincts and features of wild fowl have been bred out of domestic poultry, making them even more vulnerable. I'm intrigued by Bielefelders, perhaps in part because I'm Pennsylvania Dutch and it's a German breed. From what I've read they sound like the perfect dual purpose homestead breed. The egg and meat qualities of Orpingtons plus the autosexing feature of the chicks. I'd love to hear how you make out with them.