As I said previously, she isn't acting broody. She doesn't sleep in the nest and she doesn't sit in it 24/7. She'll just go in every day and sit from 30 min up to 2 hours.
My flock started maturing around July/August, and I have some very dedicated layers. It seems like a couple are still not laying yet, but since I've seen posts where someone has a 9 mo old hen who still isn't laying yet, I'm not too worried (they are 7 mo old now).
But the behaviour that I'm...