Yup. Broody. She'll sit in there forever and a day, whether there are eggs under her or not. Try putting her outside with the other girls every time she goes back to the box, or keep her out of there altogether by putting her in a dog crate inside the coop. But that's never worked for me, so I've just let the broodiness run its course, since she's only doing what her body says and messing with her seems kind of mean (that's just me, now, and not everyone's feeling).I have a buff who has been in the nest box pretty much all day. I just went out and checked on her and all the other hens are roosting and asleep. She is just sitting there. Usually when I mess with any of my hens in the nesting box they get mad and leave but she won’t. An she isn’t getting mad either. What all do you think it could be? Worries me. I know eggs can get stuck inside and wondered maybe that was it? Not sure how I would get it out. Or I heard maybe hurt foot and she can’t roost?
Certain breeds are very prone to broodiness, and Orpingtons are one of them. Pretty, but they like to sit and because of that aren't the best layers.