Our girls were rescues so I don't know breed conditions were rough for them and feed was definitely subpar for the majority of their little lives... Best guess is around 6/7 mo old?! Now on layer feed with oyster shell in coop, have a big run plus free range daily. Plenty of scraps & mealworm treats + egg shells. Two girls have nice big red combs but one is still small and pale. She seems to be the leader of the pecking order and I'm not seeing any signs of worms in the poop. Plenty of DE to keep ticks/mites out plus dust for their baths. I've never seen her in a nesting box and she doesn't squat when we come near. She still runs like crazy... Basically, is something wrong? Will she eventually mature and lay? Was her pullet/chick stage too rough??