Ive had my coturnix since the day before christmas, so just shy of 6 weeks now. They were full grown when I got them, their size hasnt changed.... I got a few eggs out of one or two hens at the start but ever since.. nada... I know for a fact these birds are 12 weeks old or more... ive had them on 14 hours of full spectrum light each day for the past 5 days... they habe plenty water at all times.... they never run out of food or grit, they have oyster shell too now... they seem happy in their cages... they chirp like crickets, males crow, cluck like chickens, they make all kinds fo sounds... I never have hear an egg call though... I dont understand why they wont lay any freaking eggs... I thought coturnix were suppose to be easy!!!