Im not even sure how old my girls are. we bought one and I know he was a day or two old, but the others had to be more then a week old ( they were bigger then my RR.) I wish I could remember the date we got them, I believe the last week in March. that would make them 11 or 12 weeks old.( chicks were at least a week old) when do I start feeding them layer pellets? is it bad to start before there ready or wait until a certain time ?