I have the opportunity to get some araucana chicks, approx 11 weeks old? Maybe a bit older (13 weeks?). I have a few questions. - What will they need to eat (my other chooks are eating a poultry mix, crushed shells, and food scraps) - They are unsexed, so how old before we will be able to tell if they are hens/roosters, and what should I look out for? - How long do they need to be quarantined for? Is there anything else I need to know? The lady said they have been in their own pen for the past 5 weeks.