I found a listing on craigslist saying they have blue and black copper feather legged marans....From Bev Davis and Wade Gene lines. Parents and eggs on site. I would like your opinions. What are the differences between the two? Can I tell the difference at the age of one week? How do they behave? I have a couple BLRW's EE's and Wellsummers aready that are about 14 wks old. Thanks for your help