At what age will an australorp hen start to lay? Ours are 14~15 weeks old, we don't have the nesting boxes up yet! we just got them this week! I noticed that they've (there's 3) have moved alot of the wood shavings in the coop to the back cornor of the coop, and seem to want to sit in there, in the pile than go outside to play. They do go out, but not all day long like my younger chicks. Are they getting ready to lay eggs?