My laying hen Buttercup isn't acting right. She's been on her nest for a week acting broody. She won't leave the nest and makes terrible noises at us if we try to get her out. However, she hasn't laid in a week either. Why would she be acting broody if she isn't laying? I got her out of the coop and checked her vent. I didn't see an egg or anything. If she is egg bound would I see the egg, or do I need to feel inside to see? There are no signs of broken eggs anywhere. I just think she isn't laying.
Any ideas what could be going on and what I could do to help?