I have 2 Australorps. I bought them as sexed by the hatchery pullets at the end of march when they were maybe a week old. Now they're around 7-8 weeks old and I strongly suspect one is a roo even though he hasn't crowed yet. So he should need more hens so he won't abuse my single hen correct? I don't think he will be chasing down the bantam hens at all will he? So on craigslist; someone is offering a BA hen that is almost ready to lay, so maybe around 16-20 weeks? Will the age difference be an issue at first? The bantams they live with are at most 11-12 weeks old. How long should she be quarenteened? When going to inspect a hen, are there signs you should look for as far as the health goes? Any answers to other questions that I haven't thought of yet? Ooh! What would you feed her? Everyone else is on medicated chick feed still. Grower with an oyster shell option?