I have a similar situation with one of my Rhode Island Reds. She spends 23 hours in the nesting box and doesn't go up on the roosting bars at night. She also doesn't seem to be laying any eggs.
That worked for a while but the big birds continued to be territorial so I put a picket fence between the food for the little ones and the rest of the pen. The little ones can fit through the pickets but they are too close together for the big ones to fit. They can jump over but apparently that...
We have had one Sexlink and three Rhode Island Reds and my wife wanted a couple more because we are not getting enough eggs. We went to the store to buy a couple more and on the way that grew to four. We looked at the choices and I went to the counter to find out the prices on the eight week old...
At ten weeks old we are not closing the coop door because the run is predator proof. We have five pullets and a small two foot by three foot coop. Just finished the new 4 by 4 coop and letting them roam and discover the new space.