Comment on part of your post-
My take on a dominant hen's role is to boss the others around some, but she should not keep the others from food and water, or be so mean that the others have to hide in/under/on things to get away from her all of the time. In my chickens- there are some who are dominant- they eat first and tend to peck the other away when I throw down something yummy (kitchen scraps ect)- but they do not hang out by the food & water and drive away the others.
The flock dynamic does have top hens and subordinate hens, but if some or one of the hens are so subordinate/harrassed, that they lose weight- then there is a big problem that needs to be addressed by their caretaker (you). Options that might help- pick one or more: limited free ranging, adding in more stuff to DO- hanging cabbages/straw with mealworms/pieces of sod ect, building a bigger pen- lots more space, peepers, multiple feeding & water stations as the mean hen can't guard them all, physical barrier INSide the existing pen to separate them, & debeaking the mean hen.
It sounds like you have a bird that has crossed the dominant line into bully territory, it is good you are taking action.
Personally if I had a mean n nasty hen, I would not keep it. If my husband wanted to keep her over my preferences, he would be responsible for building her a new home an doing the daily care of her. The single egg she laid a day would not be worth it IMO to get a personal pen at my farm!
BigDaddy'sGurl :
To anyone who had constructive and kind suggestions (even some humorous "eat her" thoughts lol) thank you so much and I am going to try them all until I find something that works. For anyone who criticized (seriously, not in a joking way) my husband or my intent to keep my mean girl, let me just say that as I know chickens, even if we got rid of her, we would probably have another hen take up the "dominant" role because our chickens are not free ranged. To imply, or outright say that we would let our other chickens suffer unnecessarily because of this hen is rude and undeserved. I wouldn't have started this post if I thought her beating up the others was okay. Our hens are not "suffering". They are simply lower on the totem pole at the moment but if you would read my post from last night, the new girls are isolated until I get the problem handled. I do not believe that selling her and sending the problem to someone else is the solution. She lays daily (which is all we ever wanted), and she is a smallish game bird so it wouldn't be nearly worth the effort to eat her. She is also friendly and inquisitive with people and very comical and talks alot. I will fix the problem so suggesting I or my husband are somehow being inhumane is a slap in the face. If there is nothing funny or constructive, please do not post as you are just spreading negativity.
On a lighter note, what are "peepers" and wear can I buy a pair or a hundred LOL?