My New Hampshire hen was the most friendly of them all. She was the one to jump on a perch just to be held. Now, she has become mean and defensive. She is always laying in her hen box, where they lay eggs. She took the most used one to herself, and she never leaves it! I have to pick her up and move her outside. When I do get close to her, she puffs up and occasionally pecks! There is barely ever an egg under her, but sometimes there is one. Once I put her outside, she will continue to puff out and will also attack other hens. When some of the hens go inside the coop, she may peck them or chase them out. This can be bad because she could be preventing my other hens from laying. I don't know if this is the correct word for her or not, but is she broody? I think that she may want babies, so I may have to build a separate coop for that. What do you think it could be?