My chicks are 11 weeks old and they are from Murray McMurray's (mail order). The BR feathered the quickest and were the most friendly and curious in the beginning (first week or so). The BO are the more friendlier ones now though. I have 2 BO that follow my kids and me around all over the orchard. They talk to us and want to be held and cuddled all the time. I love all of them but the BO's are my absolute favorites because of disposition, laying rate, size, winter hardiness and overall beauty. Good luck to you and your new chicks...when you get them!