Good day my "peeps", I have a pullet that just graduated to HEN yea!!! She is a Welsummer and I have a Black Copper Marans roo. The roo is only 7 months old so I have a couple questions as I am new to having a roo. #1 He is only 7 months old, is he sexually mature? #2 What breed do you get when you breed a Black Copper Marans to a Welsummer? #3 Do these eggs look fertile? These are her first 2 eggs laid. Thanks for your time!