chickens sometimes get goofy like that, I would probably just keep bringing her out once a day, and hopefully she will forget why she started it, I've had hens hide inside, if not the rooster, is the other hens bothering her. You're just going to have to wait it out, if she wants to sit in the coop all day that's her choice.We have a baby cockerel who I normally keep in a separate coop and they rarely range together. He did try to get her once and i grabbed him put him away. He's only 10 weeks or so. He's not crowing and attempting to get the smaller hens like my bantams. She started this behavior before I took him outside. Just not sure what else to do? But wait....