I am completely new to chickens. Always wanted some but waiting for bigger property we own and will build on. However, we recently had a Mama hen come into our current yard with 12 baby chicks. After some research, I believe she is an Iowa Blue Hen. After further research and comparing pictures of baby chicks, some of them strongly resembled black copper maran chicks and there is a rooster in our neighbor that's the spitting image of a BCM rooster. We have now aqcuired a coop, though small and the hen has taken to the house and goes in every night with her chicks. Don't know who owns her (have tried to find out) but I would like to keep a couple of the chicks. Any idea what kind of chicks they may turn out to be? I know they are mixed and this may be a dumb question (I am new to this), but would they be what y'all call a sex-link? Thank you