Rural king had some baby chicks for sale today there wasnt a breed listed and when we asked noone knew what they were. My sister ended up buying some. I originally thought they were black copper marans but they dont have feathered feet. Some have yellow dots on thier head and some are all black. Some have yellow on the bellies too. They have black beaks and black and yellow mixed legs and feet. Im thinking barred rocks but idk. Can anyone identity these, and tell me how to sex them based on the yellow dots on thier heads?