I'm looking for feedback on whether a 7mo old Barred Rock should be able to handle fertile eggs. She's been laying in the nest box - very sensibly, a ground level box, for a couple days now, including tonight for sure while everyone else is roosting. Today is the first time I thought to see where she was sleeping so this could be 2-3 nights now.. Anyways, we're considering picking up a few fertile eggs to see how she does... unless 7 mo is too young?? She laid her first egg 3/22/16 at a little over 5 months old.