I would love some ideas though, the floor of the run still hasn't been finished but I may can add something fun in the meantime..
And with the whole floor not being done, well when we had the run built nobody noticed how DIRTY the dirt was, the were millions of tiny pieces of junk everywhere inside all the dirt... like teeny tiny pieces of glass, plastic, carpet fibers, burlap sack fibers, old filter and sponge pieces, metal scraps... just all kinds of stuff which they were eating!!!
So I was forced to shovel out over a foot of the dirt, which there is still stuff that far down! So now I have to fill it all back in with clean dirt to cover it up and im doing it all by myself!![]()
You definitely made a good choice doing that, even as hard as the physical labor is. I know what that kind of area is like. I swore that the area we first chose to clean up for our original coop was some burn pile trash barrel area in years past. We would clean up the area, and as soon as it rained, BAM, it had all this cr*p come peeking out of the dirt again... It took us FOREVER [it seemed] to get it all dug out and covered up!
As for your original problem, here is an idea... Catch everyone else, one at a time, and trim their beaks to where they're less pointy and sharp. As long as you do it like you'd trim a dog or cat's claws, and stay away from the "pulp" in further, it won't hurt them a bit. Just use sharp fingernail/toenail clippers. That won't stop the bullying as much as stop it from causing injury.
Also, you can help the little lady gain more pride in herself, so to speak*, by having her hold her head higher, and stand taller, around the others, as long as you're there physically helping her do so, and keeping the rest at bay while you do it. Just hold your fingers under her head, and gently put some upward pressure on her jaw, to have her hold her head higher. The physical action of being taller can help her feel less 'target' and more 'proud, pretty chicken'.
*Note:
Many people debate whether chickens have enough thought processes to have emotions such as pride or depression or love. As long as we remove the human aspect of it, they definitely, as far as I am concerned, have their own form of emotional processes.


And, LOL, yes, I have been called a chicken whisperer!

(minor edit for typo)