Make sure she is eating and drinking. Try picking her up and taking her out of the nest. Put her by the food and see if she returns to the nest shortly. You want to make sure she is not losing weight. She could be hiding in the nest from an overly attentive cockerel and not really broody. If the cockerel comes after her when you put her by the food, he could be harassing her to the point she wants to hide. The ages are right for that.Thanks. Ok, I'll wait. How long should I wait? 2 days? 1 week? I put a gold ball under her instead. So far, even though it's early, I do think she is broody. This is different from her normal laying behavior. She also sits on her nest for 2-3 hours after laying an egg. She has never slept in a nest. I just let my chickens out and she did not budge.